I tried the APC 16.5x5W, and it's the highest thrust with the YS 110 engine I've experience so far. But it starts to get a little heavy, so the spool up response may lag a little.

Wood Scimitar is great for rapid response, but my experience with other larger wood Scimitar is that the thrust is not as great as APC. Well, depends what you are going for. I find APC 16x6 is a good compromise.

The new Scimitar S-2 nylon is also great.