Shimmming will be a piece of whatsit for someone like you (it's a logical process you go through). - I've done it loads of times on various engines.
Basically you will get a set of shims with your tappets of a selection of the most normal sizes. You are also given the ideal (range) of clearances (go find your fealer gauges) between base of cam lobe and tappet.
You then go through putting shims on buckets till you get as many as possible in the required range, then measure the ones that are out (by 'X' with your fealers), then swap / buy the few ones you need.
Peice of paper, a pen and a couple of cups of tea will also be required.
It'll take a little while as if you're like me you'll keep going bacvk over them to check (when the engine has been run) that they are still operating within the required range.
I've talked to both QED, SBD and a cam manufacture about using solid/hydrahlic profiles with solid/hydrahlic tappets. The differances are in the cam profile, and in particular with the 'ramp' angle to and from the lobe.
IIRC (and get this the right way round) - the solid profiles can (and do) run a sharper angle up and down, and is too sharp for hyrdrhlic followers as they will compress and decompress with the higher angle (so stuffing the valve timing).
However (from what I remember) solid followers can be used with hydrahlic profiles but (as you said) you are not getting the best result as you could run a 'better' profile cam with them.
I think it's one of those jobs that a pain in der bum the first couple times - I remember Matt saying it took him ages as the clearances went to pot every time you turned the cam over.... a lot of re-measuring and changing again.
a job that requires you to develop 'the knack' as it were.
saying that I've never done it.. ha har lmao closest thing I suppose was timing in cams with the dial gauge.
cool just trying to sort it out with rsc...not sure how many cossies run solids tho as thats what the main man there specialises in.
gonna give it a crack anyway, but 1st i need proper pistons as the cutouts STILL arent big enough for the cams lmao
***king losing the plot quickly i tell you, so many decent bits to fit and so little money to actually buy other bits needed to fit them to the engine