That is a good idea. Sorry haven't been back for a while, I see so many cuben diy projects!
I kept some D rings, removed some that weren't close to the ground (in practice) (as well as the two front main ones) and replaced with cord locs.
Little tent is great, only had perhaps 15 more nights in various places (have limited chance for over-nighters and a bevy of other tent choices) but some in narly weather. I'd like to build another one day, mine looks a bit 'hand hewn' with all the alterations. Lighter, a few thoughts to getting more height from the cuben (width), not much else i'd alter tbh, even end opening is ok.. maybe this will change as age robs nimbleness : (
About to build a mega tarp/shelter.. well.. 4x4 m so 'big', so i'm catching up on the latest design thoughts here.