even in a drysuit.
Now I won't tell you that its a particularly pleasant exercise, but I CAN reach them without dinking around with the straps on the plate.
Two big problems with inverting the tanks:
1. How are you going to route the hoses? Think long and hard about this one; you will likely need custom-length hoses, and keeping them from being a mess might be difficult.
2. How do you put the kit on and take it off? Yes, I know, a cage over the manifolds - will it work? What will you sit the kit on while donning it? Will it work on a boat?