Just a quick question: Can a mefferts pyraminx's tensions be adjusted, and if so how? Because mine can not even got through a scramble without popping

put a flathead screw driver or knife under the corner cap and pry it up. this will take a lot of force, but it works. underneath is and adjustable screw.

And this won't break it?

Update: worked perfectly. Thanks X-TownCuber.