Well, they're in. Malossi 67-6458 gear set DOES fit the AF05 E/Pre-1994 Elites and Aero cases. The Mallossi Drive shaft presses into the 6203 case bearing by means of a special installation collar only Honda-san has. You can use a press if you can find a pipe sized to fit the inner bearing race. That pressure applied incorrectly will crack the case and/or trash the bearing.
The Malossi countershaft 32 is a straight press job onto the stock countershaft, replacing the stock bevel-cut 34. Honda dealer did both for $50, AND cleaned up my horribly dirty eBay tranny case to sparkling. Only problem is tranny case numbers no longer match the frame. No Concours shows for Flash.
I purchased used parts to make the swaps, so I can bolt-on either the stock 11.097:1 ratio or the Malossi 7.83~:1 "long legs". Variator tuning is mandatory to prevent over or under-revving in the midrange and/or premature variator upshift before the bike gathers sufficient momentum. This is ongoing, waiting on lighter rollers to arrive.