Here's chum Ian helping me to mark up cloths for the Roundway Down game with a very unusual 26cm grid, that is required because of the somewhat unusual configuration of the battlefield (7 boxes wide). This proved to be quite involved, since the cloths I had picked are from Geek Villain and use a fleece that is lovely but stretchy, being designed to go over hills. But Ian and I are grizzled veterans of marking up cloths with grids - heck, we've even done hexes! - so it wasn't unduly taxing.
The reason I like these GVs is because they are a great shade of green and there's a nice nap to the fleece. Unfortunately I had to use the last three I had in stock, so I can't sell you any, but I'll hopefully receive more in June, both gridded and un-gridded.