superstock springs rear clamps?

can i jump in here guys.I have a question about clamping the super stock springs.on the front i have the front segment clamped, with a after market clamp. the rest of the front spring has the factory clamps. So my question is should i ad more clamps to the spring? by that i mean do i add another clamp in font or behind the factory clamp? the back still has the factory spring clamps. have not taken them off yet. i just got a new set of the new M/T ET street radial pro tires and a news set of the calvert 90/10 shocks for the front and the calvert/rancho 9 way shocks for the rear. i get to test this all out this weekend at the mokan race. so looking for advice on how to set this all up. here is a pic on how i have my springs clamped now. thanks mopar65