I was looking to get another prop for my trolling motor which is a Minn Kota. I looked on my prop and it only says weedless wedge, there are no numbers anywhere on it that I can see. I looked in Bass Pro book and there are six different ones, they all say weedless wedge but then they have numbers with them ranging from 6,7,8,24,32,33 How do I know which one I need and what do these numbers mean? Thanks in advance. It is a 101pd thrust if that matters