tial spring size question.....

i am going to be using a tial 35mm w/ my setup. i picked a used one up, and i’m not sure which spring it has in it. the spring is red and has a ID of 2" and the OD is around 2.375". is this the regular red spring or the “big” red spring.

thanx for the help.

i dug deeper, and it seems it’s the big one by it’s OD size. time to trade…
confirm anyone?

thanx.