I was woundering how to tell 2TG cams apart? I just got a TA22 and it came with a heap of spares, including 2 sets of 2TG cams. the numbers on the cams are the same execpt for the last no. they are: xxxxxxxx220 and xxxxxxxx222. i was wanting to know a bit about them like what duration and lift they both are? aparently one set is the standard set and the other are a mild set. any help would be great!!!!