I am having a hard time deciding what motor in this class to buy. On one hand the ZDZ 80 is light and has BIG horse-power, but on the other hand the 3w-75 seems to be more reliable (but heavy). I've watched people struggle starting the ZdZ, but once running they seem very smooth. I guess what I'm looking for is a motor in this class that is dependible and reliable as my DA-50. If a DA-75 existed, I would buy one in a minute!