Originally bought for overhead waves for my JS FMN at OBSF (beach break), I tried them first on my Pixel Gremlin on smaller days. I end up liking them as much for both boards & respective conditions. I thought "speed AND control" would be bs but this is exactly what those fins provide!!!
I'm able to extend the range up for my gremlin (more control than any fins I own) but also down for my FMN (doesn't have this slow feeling). I recommend 100%!