Peerless PRMA450

My odd job man asked me to point out the instructions are bad (actually he said more than this but you get the idea). This is a very heavy piece of kit even before you mount the TV. I chose this one over the other cheaper ones for my TV (just under 50") as Costco sell it and normally if Costco sell something, the the quality is excellent. Luckily the wall we chose to place this on is a structural wall. However because the plasterboard is dab and daub (Spots of plaster holding it in place, common in...