I just got a couple of the Saltiga radiation drag knobs for my Dogfights and I'm amazed at how much more precise they feel in comparison to the standard knob. I didn't buy them with this expectation - I bought them for bling
but I do not doubt it would be much easier to get a grip onto it when you're fumbling around during a fight and it certainly feels more precise. If I could get these for my Stellas, they'd be in the mail now. You can get some great bling for the Stellas like the Fisherman handles and the Yumeya spools but as far as I am aware of, noone has done an aftermarket drag knob.