I paid $2.99 for my feeler gauge set from Harbor Freight. I just keep it in my range bag for gaping my 744. Leave the shim between the cylinder and the forcing cone while you are tightening the barrel nut to keep the barrel from tightening closer to the cylinder. What the OP described sounds a lot like a barrel without enough gap which is often caused by removing the shim before tightening the barrel nut.
I haven't seen any barrels coming from EWK in a few years. I am guessing they can't really compete with CZ in barrel prices. I do really like and recommend the EWK muzzle brakes. They are very nicely designed, very well built, quite effective and a heck of a good deal for what he charges. $75 for a muzzle brake that you can mount or remove in a minute is a heck of a deal in my book!
I haven't seen any barrels coming from EWK in a few years. I am guessing they can't really compete with CZ in barrel prices. I do really like and recommend the EWK muzzle brakes. They are very nicely designed, very well built, quite effective and a heck of a good deal for what he charges. $75 for a muzzle brake that you can mount or remove in a minute is a heck of a deal in my book!