"You have more then you think" is the theme of this thread. I haven't posted much in recent months but wanted to give back a bit on a subject pretty important to every cyclist out there...in particular Campy fans. I am fussy about gearing as many are that are into cycling. I never fully embraced the huge gap between a std Campy compact 50/34 crankset. But...I love the design and performance of a Campy CF compact in particular with its minimalist outboard bearing UT design...the sweetest crankset I have ever ridden. Also, I didn't want to paste another triple on my bike as much as I love the choice of gearing and the 42t middle ring in particular for general riding. So...I dug in and started to survey different chainring options with the Campy compact with 110 BCD which btw aren't many if you stay in the Campy family. Well...Campy rings cost an arm and a leg...at least an arm and I wanted to see if I could find a more cost effective route and yet retain my beautiful Campy Chorus CT. I stumbled around the web and came upon some dialog between some racers that figured out a workaround...guys that are very particular about gearing and were sticking generic chainrings...inside ring in particular on new Campy Cranksets.

There is a dynamic to the whole thing that those that have been around the industry know only too well. Campy and others put a tweak in their compact cranksets that only allows them to be used with their chainrings.
This is done btw throughout many industries to sell company specific products. Dell comes to mind with their motherboards...lol. I digress.
Also Campy doesn't offer as many inner ring options as I prefer.

Here is the basis for this thread which is easy and its cheap...what most cyclists love. You can buy a garden variety Sugino inner ring with 110mm BCD for about 20 bucks. The integrity of the non pinned inner rings is basically the same as that of Campy...the only difference is the Sugino rings have more of a silver versus gold caste plating. Take a dremmel or small dia. round file...chainrings are soft aluminum...and open up the single crankarm chainring mounting hole 2mm outboard to accomodate that bolt. Its that simple. To maintain proprietary advantage, Campy has the crankarm bolt position (only) 2mm more outboard such that you can't simply paste on a generic 110 BCD chainring. BTW it will also work for the outboard ring if you are interested but a good pinned outboard ring is more expensive but not nearly as expensive as new Campy outer rings. I personally like the 50t outer ring and never liked a 53t big ring on conventional cranksets so until it wears out the Campy outboard ring is a keeper.

In summary, I now have the gearing that I like. If I go to the mountains, I would put back on the 34t inner ring...or change the cassette....very easy to change out. But for the kind of riding I do, I love the 50-38 with 12-25 cassette. A 12 tooth gap in front is so much easier to shift and I get more run out of the little ring whereas before I was always between chainrings. FWIW Campy inner chainrings are about 100 bux and you can find a much larger variety in generic 110 BCD inner chainrings for 1/5th of that cost.
Hope that helps. See below for pics: