gmentals

Is there any noticeable difference between a 1.2 mm and a 1.25 mm. I recently bought an 05 LGT with an ewg run off a Trubost 2 port. I am trying to switch back to the stock iwg and bcs configuration. I have sourced a stock bcs and a 1.2 mm pill from a forum member. I have an AP and would like to be able to flash stage 2 or even return to stock. I do work at a machine shop, so I have the ability to ream the pill, if necessary.