I have been running a zinger pro 18-6 on my OS 160 with a slimline pitts on an 11.3 lb extra. I am not real happy with the preformance and would like to know what props others are using. Seems like I was getting around 8800-8900 on the third tank, but real world has me at full power trying to maintain a high alpha KE and hovers at 3/4 throttle.
Any suggestions, maybe a 17-8?

It is a 24% CA extra, a mousse can would not be appropriate. Throttle response is OK, some midrange burbling but not much, low end needle had to be leaned quite a bit. No pump