Yep the sleeve really helps out when showing the hammock into the stock stuff sack - whether purchased or home-made like Martin's. I think the best bit is what Napakettu points out - it's a bit of a pain stowing the hammock especially if it's wet. This has to be my #1 mod!! Though very closely followed by Martin's DIY frontline - I may well have a bash at this one. Slightly off topic I'm extremely excited at the prospect of spending next week in my DD at a Bushcraft Expeditions Fundamental course - 1st course for me and I cannot wait to get down there!!
Have a great time javi