Yea there's a few different kind. Hell you could use JB weld or JB quit or even use JB putty instead of the butyl to line them up. There's really no wrong way of doing it. I like using the butyl to aim because it doesn't get hard like JB weld and is easy to remove. JB putty well it'll only gives you like a 5 min gap to get if set and aimed which isn't that long.