Kinda new to clutching. Could use some guidance

right now i am in the process of tuning my m7/8bb clutching to reach the 8100rpm mark, up from 7800.

i have a basic understanding of how my sled's clutch components work, but my experience with clutch work and maintenance (up till 2 days ago) has been limited to installing an rkt torsional mod, and changing my belt.

so i need to gain 300rpm. i'm told that i should increase primary spring pressure, and decrease primary weights. i started with changing the spring in the primary. i went with the orange/black which the shop guy tells me is the same spring rate as the black/orange in the new sleds, but it doesn't snap. the original yellow/white looks pretty sacked out. (like i said, i never did much clutch maintenance in the past)
on the mountain i was getting engagement at around 4000rpm, which was definitely up, and it felt like much smoother acceleration. on a nice long hillclimb at wide open throttle i was seeing that 7800rpm, but then after about 200 yrds (and slightly steeper pitch) i saw the rpm creep up to 8000 rpm, and hold there for the rest of the climb (about another 200 yrds).

so now i'm wondering, why did it take so long to hit 8000rpm? is this typical?,
do i need to change more parts?,
could this be a result of some other worn out part that i should be looking for? (ie. primary/secondary rollers).
can belt tension play in as a factor? mine was a little on the tight side, but i didn't have an allen key with me to loosen the bolt and play with the tenison.

i also read up on my rkt torsional, and apparently by adding more preload spring pressure, the motor should wind up quicker and give me a little rpm at the top. is this the answer?

and if anyone would like to elaborate, i would love to hear about any common problems that do occur, and what symptoms to watch for to identify them.
sorry about the long post!

it kinda sounds like you didn't read my post too thoroughly. just to make things clear, the 800bb is supposed to make peak hp at 8000-8150rpm, and i am running a speedwerx 925 single. so that is why my target is up around the 8k mark. and to simplify my quesitons, why am i not reaching 8k rpm untill after i've been pulling for so long? is this normal, is it my setup, or should i be looking for worn out parts?

thanks slomo, thats awesome. how quickly do you achieve 8100? is it right away, or does it slowly climb up there like mine is right now?

just got a chance to go out in the garage and check a few things.

yes, the primary spring is getting some rubbing.

yes, there is some play in the primary rollers.

and the rollers that are in contact with the helix at idle are looking worn. maybe even just beginning to develop flat spots.

looks like i have some work to do, and some money to spend.... damn.

almost all of my riding is done between 6000 and 7000 feet, give or take 500ft on either end depending on which area we are riding on a particular day.

my rkt helix is the 34 and i use the red/white spring. it is currently set on the middle hole.

i just pulled one of my primary weights and it has 703-68 stamped on it. so i'm assuming that it is a 68gr weight.

when i was doing a flat pull across the lake, i was actually seeing less rpm (7600 tops) then when i was pulling a climb. would this suggest that my secondary is backshifting lots, and this is why i see the 8k rpm as the climb got steeper and deeper?

i've got the 13.5:1 domes. thanks for the advice. i'm gonna pull that secondary off soon and check those screws as well.

anyone ever successfully replace their spider? from the little bit of searching i've done, it sounds like a real beeotch to get it off. am i better off bringing it in to the shop?