I would say if you're looking to progress your jump game, and only your jump game, you should get another ski altogether. FRs have a medium flex, but the rocker may make them unstable on the biggest of jumps. Punx are full camber, but are really soft, and so they will also not be the most stable. Something with full camber that's a lot stiffer will be a lot better on jumps but not quite as playful and forgiving on rail. Something like a volkl wall or salomon pro pipe. I would say out of the punx and the FR, go for the FR because you will really notice the instability of the rocker on the most massive of jumps, and even then it shouldn't be too much of an inconvenience, and they will also be a lot more fun on rails due to the rockered sections reducing hookiness. Also, you may enjoy them MORE on jumps due to the rocker because that will pretty much eliminate catching edges on lips/landings. And when you consider the difference in build quality (atomic makes good skis, but on3p simply uses much better, more durable materials) the FR is the clear choice. Its considered one of the best park skis on the market right now for a reason.