I see. I'm doing some research to the magnums too. ...I just like all the reviews I've been reading on them and how smooth the shifts are compared to the stock trans.
Yeah, I've got a Magnum XL in my Roush, and it shifts perfect (after its warmed up a bit). Very precise and smooth. My only problem is, I grew up with Muncie 4-speeds, and speed-shifting (or full-power shifting) the 2-3 shift on a Muncie was simple, just push up and to the right. But on the Magnum XL, if I use that old habitual technique in a speed shift situation, I can sometimes end up going from 2 to 5 in the Magnum, missing 3rd, ugh. The 2-3 shift on the Magnum XL is trickier than on the old Muncies.