Hey all this is Jared KF7 ULS with 26” Airstreaks. I fly with a few guys that are a bit faster than me and was wondering what top end gain I might see by adding the airmaster and whirlwind blades? I see a lot of folks posting 110 -125mph. I’m 103 at 5400rpm. Wouldn’t mind seeing a 10mph bump. Is this even in the realm?? I currently run a warp taper tip. Was going to whirlwind. Any one with data on this upgrade they be willing to share their experience?

I also fly mostly between 0-6000msl

Thanks Jared