Yamaha F150 Prop Selection

I have a Robalo R180 Boat with a Yamaha F150 on it. I want to get a new prop, my current is a 3 blade painted black one. I run it in coastal waters in Nova Scotia where it can get choppy. I was reading a 4 blade prop might be good? It seems like the Solus 14-1/2 x 15" might fit it and work well. Does anyone have any experience and can help me confirm this?