with old hoops comes great liability

So, Simon (Cornering Force) and I have been mulling over my roll-over hoops, and there are concerns about the design. The main one being, if I did end up on my lid going the wrong way then I have a couple of problems:
1) they aren’t high enough to give 5cm clearance for my helmet
2) if i’m going backwards, i stand a chance of them ripping off. This is bad. Brief, but bad.

So, we’re going to bend up some roll-cage tubing to go in behind the seats all the way down to the floor, securing onto the mcpherson strut turrets, cross braced and then with a demountable forward bar to the passenger footwell so for track days I’ll have extra bracing to stop stuff ripping off and squishing my head.