Thanks Cris, I do remember watching the video and wondered if I would really want to do that all the time.
In all actuality, I have been inside my toploader 3 times this year due to missing a gear and ultimately hammering the engagement teeth on 2nd and its synchronizer. The tranny would still shift beautiful at 5K on the street, but I'd rather be power shifting it at 6.4K at the track. I have gotten pretty good at R&R'ing the tranny, plus freshen it up, in just a few hours. The problem is, this is my only complete big input/output tranny and I really needed a good backup to cut down on all the scrambling to be ready for racing each week.
To this end, I found and now own a very decent oldschool pro-shifted Liberty toploader and have just completed rebuilding it. If I got 150 track runs out of it (about a year and a half) between teardowns, I would be ecstatic. I am now ready to give the Liberty a workout during the 6 races that I have remaining this year. Although there are certainly better transmissions for racing, I was drawn to the Liberty since it is a 100% direct replacement for my toploader. Both use the large 10 spline input and the big 31 spline output shafts.
With my low gear rear, high torque motor, and rural location, I feel I might get brave enough to try it on the street eventually. For now I am just trying to figure out what to do at the end of the strip when I slow down and need to downshift to start down the return road. Although it uses a standard Toploader first gear, since the shift dogs are not used, there is no brass blocking ring to help engage the gear. I know that I could come to a complete stop, but ultimately hope that it will work much like mustang42782's Jerico (thanks)--which is what the track tech relayed.
Thanks Cain for the Liberty info. I would consider faceplating 3rd and 4th for longevity. Did Liberty give you a price for Faceplating? I know that it costs more than pro-shifting, which is about $88 a gear, plus $33 to machine a slider (if I supply all the parts.) I understand that Liberty is quite slow, so I might even send them some stuff to work on over the winter.