1) Yes, but it depends on just how quick you have the engagement set; if you set it to a quarter crank and crank forward an eighth of a crank, you won't need to backpedal.
2) Yes, you can still coast while going forwards.
Doesnt Nankai's Freecoaster have a 3/8" axle, and i didnt know KHE made hubs becuase i dont ride flat, and from what i hear that Poverty isnt that bad, and its a little cheaper than the Odyssey and i think the Nankai as well...
Once again, just going by what i hear...
You shouldn't have to. Just as a forewarning, though, you'll probably be adjusting it a couple of times to get it dialed in as far as how much of a pedal you want to do before it the clutch engages, so you'll probably want to remove your brake pads temporarily, so that you don't have to deflate your tire everytime you adjust it.
I honestly think that EVERYONE that has every started to ride BMX and try ANY sort of fakie tricks has wanted a freecoaster at one point. I think that people have it in there head that it will make them get fakies in like one day, which it probably wont.
Basically, the way i see it is that with the freecoaser you (correct me if im wrong) pedal like once or twice to disengage or whatever and then you can coast backwards "till the cows come home" but you still have only won half the battle. Now you have to turn around AND re-engage the hub(once again correct me if im wrong).
Now when i started doing 180's and abubacas and other fakie tricks i wanted one for like a week just like everyone else, but when i got home from the skatepark to look into them i heard about how the are hard to maintence and how they can break down, not to mention there a little bit more expensive than your average hub, and some of them only come in 3/8"...
Basically what i have babble on about is, if your not a flatlander or someone that is ready to do fakies to tailwhips on banks like some of the people that have freecoasters out there, just be patient and stick with your regular Cassette or Freewheel hubs...
Its work for me...
I own 1 custom bike, and i'm to lazy to list parts
I was to lazy to read most of that post, al I saw was "soem peopel think it will help them with rollbacks". Like you said, it probably won't help. For me, when I do rollbacks(without a freecoaster), I never pedal forward when turing around, I just stop pedaling backwards, and that stops me wheel enough to turn around. So when I went to try it on a freecoaster it took me a few minutes to get use to pedaling forwards a bit to turn around. I didn't like it.