[Hectic]

To use the scs propperly you have to do two things.
First is to remove the hump/mound on the rubber or use a smooth one like the promy purple one.
Next is to do 1 of two things either mod the arm by building it up more so the scs can enter the hop window (about 2mm or the same as the original mound on a given hop rubber)
Or you can cut some squares out of an old rubber and use that to create the spacer needed to allow the scs to apply hop. If you just use an scs along with a shaved/promy smooth rubber you will find that even at full hop there is hardly enough hop for 20's.
I have gone the route of using promy smooth rubbers with the bridge style buckings. I find itll give the same centering effect of a scs AND the larger contact area provided by an rhop.
I think the scs should work ok with an rhop but ghe bridge or flat type nub/tensioner should be ideal as itll provide the largest posible contact area for the bb.
With the promy smooth rubber and bridge tensioner in stock hop up chambers and madbull 6.03 tightbores i have great results. I run 400ish fps and can hop 30 and 32 bbs with the hop only set to mid way.
Aside from the quietness and ability to run 36 and 40bb's in my 500fps bolt action i find not much of an advantage these days to runing the BA as the range advantage is only small tho effective range is slightly greater due to the higher energy and energy retension in the bolt action. But really the main advantage is stealth with the BA.
200 plus feet with an AEG and promy combo vs 300ish feet with the BA in lezs dense areas yes the BA still rocks but once places fill in and maximum ranges are rarely achievable the aeg is far more usefull