Tf727 servo questions

Ricks70Duster340 said
The rod goes under the accumulator piston, not the L/R servo. The L/R servo is modified by some shift kits to add a shim to essentially make the servo solid for a faster apply/release of the rear band.

Yes I understand that. Separate the low reverse servo question and the accumulator question.

Is full kit needed with this shift improver?
Is a blocking rod, a good mod while I’m in there?

Ricks70Duster340 said
The rod goes under the accumulator piston, not the L/R servo. The L/R servo is modified by some shift kits to add a shim to essentially make the servo solid for a faster apply/release of the rear band