If possible we don't want to put holes in the new tubing, as it will only weaken it. Remember it has to last as long as possible. I will try and get a few knackered inner tubes from one of the tyre places if I can. Then we can try it at NO cost.
what ever we do needs to be so if you hit the tube what ever is holding it down wont rip your wheel off,iv seen people rip both front and rear wheels off,and before that one person says you shouldnt hit the tube,you hit the one rock in an open field(highlift)