So long as the frame is within spec (see the 2012 Tech manual at
www.campagnolo.com for the fullest details) and the FD is correctly mounted, you don't need a trim on the FD as if it's correctly set up, regardless of (Campag) chainset from the same generation, and cassette sizes, the chain won't touch the FD when you are in the big ring, even if you are cross-chaining.
For FD set-up, a Campag clip-on should be OK if the frame is right, otherwise, if you are using a braze on FD and a clip, it possibly needs a Campag clip not a 3rd party one to be dead right, or jf you are using a braze-on attached to a fixture on the frame, the fixture needs to be in the right place - also covered in the Tech manual.
There is trim on the small ring, it works retrogressively, as Shimano etc - so you drop to the small ring and then if you get chain rub, trim The FD with the upshift lever.
If the FD position is out, either because the frame dosen't fit the base spec that Campag, Shimano et. al., use or because of a clip / set-up issue (too high, too low, mis-aligned), then you may get scrape.
If the chainset is using something other than 50-34, 52-36 or 53-39 rings, i.e.with some 3rd party chainrings - even on a Campag spider - you may get some scrape as Campag set part of their rings' spacing with the shaping of the ring itself - not always followed by 3rd parties.
If the chainset is not Campag you may get some scrape as the offset from the frame may be out of spec., or the ring spacing may not be the same, or both. Some generic "10s compatible" chainset rings are further apart than Campag spec. in order to be more-or-less right for all the 10s systems in the market (though in reality this affects 50-34 x 13-29 the most - other combos you can usually get it to work OK).
I'd avoid an inline adjuster on the RD - you don't need it, the adjuster on the RD will give you enough adjustment if you take care in the original set-up ... it just adds friction and so can compromise the shift. If you use one on the FD cable (and a lot of frames these days leave you no choice), try to position it on a part of the outer cable that is as straight as possible. We'd advise the Campag one because it is less prone to "self adjusting" when you turn the bars than most of the competition, and it adds less friction beause it uses only one ferrule, so only one extra o-ring in the system. All FDs now really need fine cable adjustment, it's not just a Campag issue - really it's a frame issue ...
HTH
Graeme
Velotech Cycling Ltd