Anybody got an idea on how many on-off cycles the nylon/poly (whatever they are) propeller locknuts on the VP DPS system will last? As a frequent propeller changer and self-lube changer, I wonder if these are something that should be changed as routine maintenance or just wait until they wear out. Speaking of which, how is it determined when they are worn out ... refusal to stay tight, when they fall off, when the nylon/poly material disappears, etc.?
