Tough call. On the one hand, height is a good bench mark to judge progression by - whether it's in bricks, inches or millimetres but it can make for a very dull ride/video if you get too obesessed by it. Personally I hate the idea that trials becomes dominated by people going I can get up a .... inch wall or do a ....gap. (But having said that, I know I'm guilty of it but I do try to focus more on the fun/flowy side of riding and not getting too bogged down with the height of a wall.) I do find that if I spend too long on one wall doing the same thing that I will eventually find something new to do on it which can be good. And as for Akrigg's vid....who says you can't flow on street stuff.