Grateful for your recommendations of best all-round mat for run-of-the mill bouldering, please (Roaches Skyline, Stanage Plantation, etc - no padding-out of extreme/silly placements). Most important criterion is excellent shock absorbance to protect my dicky joints, followed by no weak spot at fold, followed by wieldiness/ease of carry, especially with sac on. Large area least important.
Whichever of the SNAP pads is the biggest that you're willing to carry, they have a rubber bottom that slides around on the ground less and is waterproof and when you fold them up that goes in the middle so you don't get mud on your back. The fold means there isn't a hinge to twist your ankle on uneven ground and the fact that the closed cell foam which goes on top folds around the outside means it doesn't get screwed up and ruined as quickly as pads where it folds on the inside. They're cheaper than a lot of other pads while being of a higher quality and better thought out, most companies will make pads as a sideline to the gear that is their main thing whereas SNAP started with pads and bouldering bits.