I am never again going to use any paper under 200lbs - all right, it would have helped if I'd stretched it properly rather than just running masking tape round the edges, lazy and foolish, bottom of the class. But even so, the sheet of Bockingford Rough that I'm presently working on - 140lb, 300gsm - is like a sheet of corrugated iron to paint on: and the paper does seem to vary; I was just as lazy with several other sheets, and got away with it, unless maybe I've used more water this time. I can't get an even wash, I've flubbed up the detail by trying to paint over ridges of paper... let us hope it'll all come out OK in the end, but at the moment I wouldn't put money on it. Trouble is, I fancy painting a watercolour now and then instead of another oil or acrylic, and don't take the trouble I should .... I know this has been covered before, and questions have been answered; it's all there in the Watercolour section of the Forum - what papers people use, what weight, whether they stretch or don't stretch, how they secure the paper to the drawing board; and I've used Arches paper, and Saunders, heavy-weight papers, hard-sized papers...... and STILL I stick a sheet of light-weight Bockingford to the board with masking tape, flood it with water, and then swear when it turns into a Marcel-wave in front of my eyes.... Profit by my experience: a) think (YOU probably do); b) stretch lighter-weight papers; c) if you hate stretching (and some of you love it) for goodness' sake use heavier paper. I am now off to kick myself several times round the room.