My take on what should & shouldn't be allowed at a kneeling lane ._
!0mm max thickness rubber mat .
Tapered roll , 180mm down to 100mm at thin end ( possible flat bottom to stop rolling about ) , 300mm max length . tapered to cater for different sized feet .
If folk are worried about harming themselves by kneeling on a pebble , thorn , glass or whatever ...... take em standing
would also like a sign at each kneeling lane stating the above .( to cover any possible claims )
One or two have said that the one ive been using was a bit uncomfy so the outer skin is still under investigation as to softness that is needed .
So far , as brian has said it is impossible to fluff a rollup to rest your backside / under carriage on ,as some do with a bean bag .
Cheers , calps .