O
One Day
A plasterer watched me using packers and adding bits of timber to crap studs once. He told me his method is to just screw boards on to the crap timber and then dot and dab 9 1/2mm board on to that to get it bang on. Not something I've done before but it made sense, it's not going anywhere and can imagine it would be super fast.
Thoughts?
Easy and fast for a skimmed wall. Weak for a tiled wall though.