Some like street shift and somne like race shift (reverse, GP etc). I like street shift on a street bike, race shift on road racers and street again on MX and Supermoto.
Andy's diagram would work, and you could fiddle around with the ratios for a soft comfortable shift that diddn't destroy your boots and toes, or a harder, more positive shift.
I've never run an NSR more than about 2 minutes with stock steps, so I've no idea why you can't run race shift. Why is it?
Race shift allows you to just stamp on the lever to change up the cogs, which can be handy if you're at full volume through a fast left hander, well banked over and you can't get your foot under the lever to shift up.
It can also be a little more tidy hammering down the chute and just sort of resting your foot on the lever to switch cogs.
Check out Max Biaggi when he's down the straight. He uses normal street shift and everytime he hooks a gear his knee comes out a couple of inches. Any 125cc GP team boss would complain bitterly about that as you'd lose 1mph atthe end of the road.