I just use one scale and a block of wood the same height under the other wheel, swapping it around and then adding the two readings together.
No need for a third set under the side stand, just hold the bike steady and read off the weight, that way I get the true F/R split.
Just for interest my Cagiva Mito 125cc 2-stroke goes F65kg, R65kg for a total 130kg, 50/50 F/R spilt.
The old Triumph Daytona cafe racer came in heavy at F65kg, R78kg, total 143kg 45/54 F/R split.
The Yamaha SR500 cafe racer cruised in at F65kg, R65kg total 130kg, 50/50 F/R split, surprisingly the same as the little Mito.
Guess I'm just as anal about these things as you are.
Either that or else I have too much time on my hands
I have no idea why today's bikes with all the modern light weight materials available are so bloody heavy. If I can build them this light then so can the factories.
I removed 33kg from the Yamaha from the factory weight.
Adding power makes you faster down the straights, adding lightness makes you faster everywhere... Colin Chapman.