Re:what primary and secondary spring?
i have springs for sale if you want to save some money i have a yellow secondary that would work great for 31's and i have a few diff primary springs left i think i have the gold, yellow, lime green, left i also have 2 56g epi weights left. hollar at me if you want to buy any of it. i have a red secondary to but my buddy might want it not sure yet let me ask him if he doesnt want it i will sell it also.
but i would say 31's and a 650 yeloow secondary gold or lime green secondary and 2 56g weights would be a good setup just my 2 cents.