What to look for in a bolt in sprag?

I have a Coen bolt in I will stay with it. Never run a stock sprag with a reverse manual shift non low band apply. Also use atleast a 4 pinion planetary set. I use Diesel planetaries out of a 90-93. No chinese parts in the trans. Depends on where the seat is that trans will take off your leg at the knee and your hand if its on the shifter. Don't go cheap when it comes to your trans.