Can any club builder in the BR area put hot melt in a driver head?

I'd just be very careful on who you let do it. If you frick up with that stuff, there is no going back.

I just did that with my r1 that I’m gonna be replacing. It helps a little but I’m not gonna do it to a new fitted driver. Especially since it’s illegal in competition. Not that I’m ever gonna partake in meaningful competition but once that cotton is in there, there’s no getting it out. Plus over time it’ll wad up from the humidity and you’ll feel it moving around in there.

I know I’m adding zero help, possible negative here but as others alluded to, I would not bother trying to add something to your driver to suppress the sound

I’d play the club the way Ping created it/intended for it to be and live with the sound. An objectively weird sounding driver that works beats one that doesn’t sound odd but doesn’t work as well

Best of luck if you go the mod route

ETA: I’d especially not do this if it’s illegal as one poster mentioned. I know we aren’t on the tour here but I wouldn’t want to mess with that if you are causally betting or playing against friends.

I've got the G425 Max and it doesn't sound nearly as bad/loud as some people claim it does. Now, it does sound totally different hitting range rocks, but with premium urethane balls, it's fine. A buddy of mine bought my old TaylorMade M3 and the G425 isn't nearly as loud and tinny as the M3.

Ah gotcha. I’d never heard of this. Sorry. Didn’t mean to derail. My bad and good luck