Transmission shields!

Alright guys... Changing to the super sprag not the drum yet dont have that kinda cash. So i amthinking sheilds!! Whats teh best type of shield out there what do you guys run or have expeireance with?? Want the best! I like all my toes and such..whats a good shield?? Do they work? Or just create more shrapnel..i mean if my trans is gonna blow its gonna blow but i want to be as safe as possible!!