Okay Dudes, here's the scenario,
  • LR4 + Nelson Tune
  • 4L60E, not fully rebuilt, but with upgraded accumulator pistons, servo check valve, separator plate, etc
  • Full Transgo Kit (HD-2 or PSK)
  • 3000-3200 stall TC (ex. Yank Pro Truck or TCI)
  • Sensible feed hole sizes in separator plate
  • Big Cooler
  • Tranny Pan w/ 2 extra qts
  • 70% city/30% hwy daily driving
  • Towing 3000 Lbs max, 600 mi/month, mostly highway
  • May hit the track once or twice a month in the future
For a good balance of nice firm shifts, drivability and durability, generally speaking, which is more optimum:

1) Corvette Style Intermediate Servo + Superior OD Super Servo + 1 spacer (from Transgo kit) in 2nd accumulator body

2) Superior Intermediate Super Servo + Superior OD Super Servo + No spacers in 2nd accumulator body

Would adding a spacer in either case be too radical?

The extra cost of the Superior pieces are not an issue with me, so that doesn't matter here.