This debate could rage on for ages.
Anyway some useful operating tips for the driver (not the technocrate).
1. When planning decent inbound
a. allow 2" per minute power reduction to 25"
b. plan a 2 minute straight and level segment at cct height/LSA/MSA prior to destination.
c. This one is especially useful in CTR (with inevidable late clearance for decent is expected to LOC for ILS)- 1 minute before planned T of D extend flaps 5 degrees (max). This will bring speed back to about 150KTS when on decent (profile 800'/min) speed will remain below 155KTS.This is more manageable than 190KTS and prevents blasting over the LOC at 170 - 180KTS with a battle to lose 50 to 60KTS to drop the gear(Vlo 129KTS).
Always read the POH (limitations) before blasting off. PA31's manufactured ofter a certain date/serial # have a higher Vlo (158KTS) than the earlier models (129KTS). Owners don't like you ripping off flipper doors when you drop the gear at the higher speed by mistake.