FWIW I have been using a Tulle bug sock from PapaSmurf for almost 3 yrs now with not one issue! Yes everyone's right Tulle is more fragile than some other offerings, but here's an idea, it's a UL piece of gear and should be treated as such, so, don't drag it down the trail, or stand on it, or grab and rip it open! Sure it's not like a 2' thick bug net that could stand up to a atomic blast or anything!
Also many Long Distance hikers have done many LD hikes with a UL and even a SUL gear set!
Be it known, I have not Thru'd "yet", so take my advise FWIW, I am only a lowly section hiker with a couple hundred miles done....
With regard to the Nano, I have one and found that I like to lay on more of a diagonal than the hammock could accommodate and my feet kept popping out (I am 5'9 194# for reference), but I have a friend thats taller than I am and loves his Nano (Stormcrow be his name), now I don't think he uses a ridgeline and I think he sleeps more centerline so that may account for it all??????
IMO I think you would be more comfortable in the Bias like you listed in your first post, but, only with trial will you know whats right or not for you, and with that said I have a Nano that I'd be willing to sell to you just send me a PM and we can talk!
Many still use pads, Srg Rock (and many others) still do if memory serves (which is always up for debate) me personally I find a UQ much more comfy (I have used pad's before)! But to give you an idea you could get a 3 season Yeti which weighs in at 12.5oz, and get a Gossamer Gear pad to supplement during the colder times (for only an additional couple ounces), also the GG pad could serve you as a ground pad, and depending on your pack you could have it be your packs frame, so it could be multi-use, and the GG pad is going to be lighter than a z-rest, also (since I own some GG pads I can attest to this) they are slightly sticky (almost annoyingly so) on a hammocks fabric, so you wouldn't have to add the glue mod... I always carry a pad with me, but it serves as my packs frame and I use it as a supplement if temps drop colder than expected! It also serves as my sit pad, and if the worst should happen I could sleep on the ground with it
Either way good luck with your decision, hammocks are a very personal thing and you will find that you will get varying opinions on the subject of what better or worse, but everyone will agree on one thing though......they are more comfortable than being on the ground