I wrote something about different pot types here, with a section on CTS pots: http://www.buildyourownguitar.com.au...l=1#post122594, but it certainly can be confusing. Maybe on the mini types with a reduced printing area (as I was just looking at the full-sized types), they refer directly to their curve type without a numerical code? I don't know what CTS series mini-pot type you've got, but it's worth looking it up on their website.