I had the same problem with a Terry Isis Sport - Came with Salsa Short and Shallow -38 cm.

After a professional bike fit, the handlebars were swapped out with 36 cm version- aluminum. Works great, and a very big improvment from the 38 cm model.

Salsa also carries a Poco version for shorter drop and reach. Available in aluminum and carbon. I am using the bike for sport/touring and prefer the aluminum version.

Also had the same issue as you with Campy. No issue with the Shimano brifters which are shimmed.

Hope this helps.