I have a 2yr old HH ULB with a bug net that always sags and hits my face. I always thought this was normal, until I got an Expedition. The net stays nice and tight on the Exped.
When I put the Super Shelter on the ULB it is even worse. I have used the Exped so much lately, the ULB is unbearable.
I have read a few threads on bug net issues with the HH. The biggest issues seem to be they cannot be removed.
I tested both of my HH's extensively this weekend; with both a JRB Nest and a SS. The SS tends to make the hammock bunched, and cause the net to sag much more than the Nest.