Hey, so I have been using holy rollers on old v1 Inspired rims (ca. 35 mm width) with no problems. But then I got in hold of a nice set of second hand wheels on Spank Dynamal Evo rims (30 mm width). But they deemed unusable with holy rollers - they pop off the beads like crazy, even doing basic stuff (no sideways landings). It doesn't help that I'm quite light and like to run them around 40 psi. I had to put Schwalbe Crazy bobs on these wheels (with no problems) but they are not that nice in terms of grip and I have a set of perfectly good holy rollers lying around.
The question is - did any of you had similar problems? Am I doing something wrong, or is this tyre/rim combo just incompatible? Now that I think about it, it might be a combination of causes - narrow rims, low pressure, flimsy sidewall... I would gladly put something more grippy on the bike, but now I'm reluctant to dump the dough on contis, fearing they would pop off this rim also. Trials world, please help.