Good morning,

As a member of the never ending quest for the perfect perch club I'm looking at yet another possibility, either the Prolog scratch pro or the scratch pro plus which has a relief channel. My latest saddle, Selle SLR max flo was seemingly doing well after a couple hundred miles but on a 25 mi ride a few days ago I ended up with a deep bruising pain on the outside edge of my right sitbone. I'd felt some discomfort there before with this saddle and the previous SDG but nothing that lasted like this. I did try rotating the SLR to the left as I do have a possible shorter right leg and there has been some improvement.

My ride is a steel bike with more upright endurance specs and I've got about 2500m with no back, neck or hand pain so far and I've recently also moved a stem spacer up to give me more drop and am enjoying that change.

So with that background I'll be giving the Prologo scratch pro 143 a try but must make a choice between the regular scratch pro and the plus with the relief channel and looking for feedback.

I've never had problems with perineum numbness so far with my longest ride a metric century last spring on a Selle Anatomica which I've moved to my touring all around Salsa.

Thanks in advance for any help coming my way

If pain is on the outside of a sit bone, wouldn't that suggest perhaps a narrower saddle is indicated. Of course I don't know the width of what you are riding now.

Despite the popularity of rotated saddles on this forum, I have to advise that the more direct and better fix for a shorter leg is sole and/or pedal shims. Except in very unique situations an uncontrolled and multi-variate action like rotating the saddle would seem likely to cause more problems than it can possibly fix. Rotating the saddle while continuing to pedal a crank that is in line with the frame will significantly change your "address" of the handlebar and crank and put significant stress on your torso and hips and knees. Some may need that, and it may be right for them, but I can't imagine invoking a rotated saddle as a first fix for your problem. Get your legs evened out with assistance from a good MD or DPM or other expert in prosthetics instead of attempting something as unorthodox as a rotated saddle.

Just sayin'!

Anyone have any feedback comparing these two saddles?

Not the Scratch Pro or the Scratch Pro Plus, but my Prologo Kappa Evo has been a very comfortable saddle for over 2 years now. it doesn't have a cut out relief channel but it has a depressed molded in the plastic base that helps me out with the perineum pressure and it gives no sit bone area problems at all. I'm considering one of the two you are looking at here so I'll be following this thread closely.

Bill

I'm very happy with Prologo Scratch Nack, the curved shape results in freer hip movement once you get used to it. Not a fan of any cut-out.

Rode on Scratch CPC. I hate that saddle. It is like a trigger for perineum pain. I can't say anything about those versions you asked of, but there is something i just can't be on (or my ass), it's about the shape both for the sitbones and perineum.
Used Selle Italia Super Flow 145 and Fizik Antares 00 also. Super Flow is best for me of his bunch. Selle is curved, but has a flat section for sitbone support. It also has a shell that offers some flex. However, none of these was working completely. There are many who love Super flow though!

I decided to do a second research into SMP. I did find the Dynamic model to be the best choice to start with, so i went with the carbon rail version. This saddle has not much padding and since it has not, it offers a deeper dip than the more padded versions. Dynamic also has the most flat rear section for your sitbones to lean against. Some of the less wide and also the wider with more padding, do change in shape. The shape of Dynamic give more flatness and more dip (curve). Now i need to say, it is a bit of work to get this saddle perfect. You will find good fittings and then you will hit the sweet spot (work on it and ride with allen keys for small adjsutments along your rides). All i can say, i will not change this saddle. For me, it is the best saddle. It is well made and carbon rails are even reinforced. The cut out is all the way so it will work better than other saddles with cut out. When you have the best position, you will find support both in the drops aswell as on the hoods. No sliding. As mentioned, be ready to do some work and only small small changes and then test ride. I would seriously go for Selle SMP. Just need to figure what saddle you are best seated on.
I think i would dare to ask you, if you do try one, try Dynamic!

I hope you find your saddle, i know how much it does in the end.

I ended up going with a Scratch pro143, no relief and it's been the best so far. I feel very much "one" with my bike with this saddle. I can and do move around on it even though in their ads they recommend it for riders that don't move around that much. 52m is my best so far but my first century will be in May so I've got to start putting in some bigger miles.