TPS - yes -- check for smooth output as the thorttle plate is opened/closed...
Fluid level & condition - always a good thing --
look also at the TVS cable (the 'kickdown' cable -- adjust it to spec, but try using the "gas pedal" to operate teh linkage and not the more standard "thumb-to-belcrank" method... That'll account for slop in more of the system...
Also the TCU is notorious for poor connections -- with the battery disconnected - disconnect and reconnect the TCU and other tranny related connectors (TPS, NSS, and tranny harness at a minimum)