I’m still using polly grips
http://whiplashpowersports.com/Polly...g_115-0-1.html
Had to use a 12-24v converter and then used a DPDT switch so I can go from low (approx 32W) to high (approx 128W) (series to parallel).
Will probably fit a DC controller with an additional 741 op amp and an ambient temperature sensor for an offset control, at some point.

If I do sell my bike, will keep the Magura handle bars and the poly heaters I fitted when I first got the bike

But I see why the oxfords are popular, as easier to fit, and draw less power; and I think Polly heater have gone out of business.
But a lot of people have complained about water ingress with the Oxford type of heaters.

How did you make the gauntlets, as agree handguards don’t give much wind protection, especially to the top of the hand.