What Cummins 24V chips/ tuners/ boxes/ you like or not?

I had a TST PowerMax 3 in my 98.5. Nine levels of adjustment and the power would come on smooth. Mark Chapple (owner) was a retired Cummins engineer that worked on the 24valve as his last project.

Isspro gauges, Westach fuel pressure gauge (can watch the pressure flutter before the stock lift pump fails), Southbend clutch and full splined 5th gear shaft so the nut doesn't walk off.