I have been talking up hammocks every chance I get and I think my sweetie (6'4" about 300lbs) might be tempted into a hammock.

Now, he'd find my gathered-end, top-loading, no-bug-net, no-bells-and-whistles, plain-old-plain hammock comfy enough, I don't doubt. But I'd rather tempt him with a super nifty super comfy hammock like a blackbird.

Of course, I'd have to buy a blackbird. Maybe I'd even get to use it.
For a few seconds.

So, here's the question: would a 1.7 double be strong enough, comfortable and roomy enough for a 6' 4" 300 lb fella?