Or wrap the entire ankle of your liner in 1/2” foam. Works like a hot damn if you really need your ankle locked in.

^ that sounds like the pro tour liner. Soft, thin, no heel hold. You could try the HV or try nodding a different liner like the HD Race to get the hold but take up room.

I’m the meantime, put a...

I’m surprised at how wide the heels are in these boots (radical and hoji) and much heel lift I get in the radical compared to the Vulcan. Not a lot of cup shape. Heel pinch pads don’t do much.

I'm just teasing. But also, I prefer to find things that function well rather than be super light. A smoother, better ROM walk mode will make much more difference than a hundred grams. Something that...

"is vastly heavier by 130g each boot"

I'm all down for tinkering but wow. Just leave your water at home and save 1000g.