My Chorus '15 front derailleur has about 1500 miles on it, and, noticing that it was occasionally throwing the chain off when shifting to the big ring, I adjusted the limit screws. I adjusted it enough that I needed help from the LBS to get the cabe tension correct again. I was surprised after their adjustment that, when shifting from big to small, the ergo shifter only allowed two clicks at once, which was *just* enough to get it off the big ring. Before the adjustment and since I had the bike built, I was able to push three clicks down in a single shot. LBS guy said that the two clicks was expected so that you don't over throw the chain, and I can still shift one more time after the two to trim. Is this expected? My last bike had 90s-era Ergopower shifters so I have no recent frame of reference.

Thank you!