Originally Posted by CDN_Stalker
Higher friction will give more spin. Harder rubber is likely to disrupt the BB path a bit too much. I'd rather have more of a high friction kiss than a whack on the BB's head. I've used 0.36g relatively fine over the years, but my rifle was shooting around 500fps. Asking a rifle shooting 430fps to lob a heavy BB past 150ft is a challenge. I shot at a guy about 160ft away and aimed at him, literally, his head in the bottom of my scope, I still fell short.
I'm talking about the little cylindrical rubber that pushes down on the bucking. The harder that is, the more hop up(Friction will be the same with the hop up rubber, but there will be more spin). Prom Hard is the hardest one I've ever had.