i have problem with units gliding on my terrain grass hills, i think i am not the only one!
so apart having flat hills (that is fine, but, to my pt of view, less realistic and nice for a wargame table) i've got an idea to share : my unit have magnetic underside, so it's pretty slippery and very annoying when you try to place it on hill sides, so i proceed exactly like in real world, i take my cutter and without pressing the blade to hard (beware the blade! ) i make some longitudinal and diagonal lines on the magnetic underside... easy, simple and it work ! (ok it depend of the angle of the slope but most of the time it doesn't glide anymore!)
I have contoured my hills. Still look like hills with height, if a little stylised. I make sure the depth of the contours is not enough to tip elements over, although nine times out of ten they stand on the flat of the contour anyway.
"I would rather have a russet coated Captain who knows what he fights for and loves what he knows. Than he who calls himself a gentleman, and is but little else." Oliver Cromwell