Thanks, that seem sensible. My jumpsuit has a nylon front and spandex arms (although I am going to get the arms tightened a bit as they are a wee bit baggy, which wont help).
I tuck the booties out the way at present anyway, as I suspect they will only assist me inadvertently zooming backwards (until I rectify my tendency to bring my feet too near to my backside!).
Tunnel time has certainly assisted in showing me how to slow my fall rate (which I am quite good at but its unlikely to be necessary very frequently) and to speed it up by the extra-hard arch, but mantis leaves me a bit less stable at this early stage - hence the weight belt...