Which 5 speed do I get?

From what I understand they have fixed the shifting problem. I have done 2 TKO cars A&B body and both were hard to power shift. The A body would grind and my B wouldn't even think about going into gear. Both cars were done 8-10 years ago. Tremec has improved all problems since then.So I have been told.

Now this is just a point of view, something to ponder,, After the 2 tremec cars the 3rd was a E body and we went with Passion's 4 speed OD. Our thoughts were in most cases you run out of road before you hit high gear anyway so no problem power shifting 1-2, 2-3 (damn turn ahead gotta lift) click to 4th drive away.No cutting, Much lower cost over all. The one thing I would like to try is the hydro set up over mechanical linkage for clutch that they have now that can be used for either trans.