More valve shim questions

I finally bit the bullet and checked the valve clearance on my 750.Put approx. 5k miles in the year that I've owned it.The PO was a mechanic at a respected local shop and supposedly worked on the valve train.
Money is very tight,kept putting it off for fear that the gasket would need replacing also.Took my time,worked slowly, gasket is intact(phew!).
Tried the wire method and with a little practice got it down.
1 2 3 4
0.15 0.15 0.10 0.09 mm's Exhaust
2.75 2.75 2.75 2.60 Shims

0.03 0.10 0.10 0.08 Intake
can't read 2.85 2.85 2,85 shims

I have a donor 750 (poor thing keeps getting lighter) which will give up two 2.70's and a 2.65.

 

Sorry,hit the wrong key, now the questions...

One of the shims on the donor was "upside down" ,could see the thickness w/o having to remove it...nice. Are the sides tempered differently? Would it hurt to put them in with shim size facing up?

Also,if I used multiple pieces of wire in the valve train(all intake or all exhaust) could I remove four shims at a time w/o damaging the lobes or buckets?This would minimize pressure on the bucket as the cam rotated. That way,if I can do a swap with a shop it'll only take a few trips.

The way the horns are relocated with a Yamaha fairing is a pain to get on and off,but I've been putting everything back together each time (literally a shade tree mechanic) and don't want dust or dried leaves.

Unfortunately the donor bike will only have to give up three shims,but again,if I could use three sections of wire...far more efficient.
Did a couple of searches,couldn't find answers to my ?'s.
Oh...next is to check compression,esp, intake #1,then whip out the YICS tool (had it for years,never used it) and synch the carbs.If the compression is way off,not sure what I'll do.

 

Everything I've learned is that the lobe will rub off the number on the shim if its number side up. The one you have is obviously a replacement and not old enough to be worn.

And one shim at a time. I think the pressure is wrong and you can break something otherwise.

I know how you feel - I had my cover off several times to do it the first time.

 

The reason you can't do all of them at once is you don't want a cam lobe coming in contact with a "shimless" bucket. You can do a couple at a time I suppose as long as it doesn't require rotating the cams too far.