So my new suspension will require helpers in the rear. (I Wonder if the suspension guy made the coilover ears a little wrong, as i now have about 4 or 5 " of droop in the rear of my rally car)
anywho i have about a 2 or 2.5" gap between the spring and the spring perch at full drop. i can either raise the rear of my car by 2 inches , or get a helper spring. seeing how the rear is already 1/4" over where i wanted it ride height wise, I'm going to get a helper spring. (sucks that even the helper is gonna raise me up a bit)
Anywho the summit helper spring says its 3" long, is supposed to be Below the main spring and can cover 2" of gap Its got a 10/ inch rate. So i'm assuming that if my main spring weights ~ 10 pounds, it will compress the helper 1inch. leaving 2 to cover the gap.
Is there any reason why i shouldn't jut put the helper Above the main spring 
During normal usage the helper is fully compressed so i don't get why it matters if its on the bottom or top. putting it on the top will basically allow it to bridge a bigger gap.
though its likely that the helper + spring coupler is going to add in an extra 1/4 inch in there compounding my ride height / handling issues a bit.
I believe my service manaual says 15.25 front and 14.96 rear. right now my front is at 14.5" and my rear is at 15.25 .
I wanted to go 15.5 front, and 15.0 rear (thinking I would gain front clearance, which has less room than in the rear, And i would put a bit more load on the rear tires)
right now with the front too low, the rear looses traction before the front, even with out weight transfer. (which was fun yesterday) but i don't think i'm gonna like that on higher speed stages.