Just for clarity with gorilla, don’t use the normal black stuff, it’s ****ing awful. It does seal up well, which is good… But it soaks up sealant and loses stick over time and when you come to remove it, it’s a total nightmare to get the residue and bits of tape off. Petrol, carb cleaner, you name it I’ve tried it and it always comes down to elbow grease and misery.
The clear stuff is very different, but hard to find in narrow sizes (I use the 50mm in the fatbike, perfect)
Honestly, stans tape and roval blue tape both work really well but if you don’t like those, then just get some good quality electric tape and do a couple of wraps.
UST vs tape- UST is heavier, it can’t be any other way- if the rim weighs the same, it’s only possible because they’ve moved metal from elsewhere to complete the rim seal. Me, I’d rather have the metal where it adds strength and width, and tape in a place where you don’t need strength. It’s a standard that more or less died the day Stans put out their first TLR rim, and they’ve pissed about with it ever since.