As of yesterday, I tried both models. I ended up sending both back. Too small for me (I'm 6'4"). I want an even curvature between my shoulders; I can't sleep in a contorted or considerably uneven position. In my experience, the only way to achieve this position in these hammocks is to lay around 20-30 degrees off center. That takes up a lot of room, too much in my case.
I actually didn't mind the lay in the Explorer deluxe except for the fact that my left shoulder needed about 2" into the mosquito netting in order to get a flat lay. I thought the neck support was nice. I observed many pictures on the net of people lying in this hammock. None of the people's lay went into the mosquito netting. Usually they were covered by fabric, you couldn't see them. To be fair, I have no idea how tall they were. Probably not tall, most people aren't.
As for the Safari Deluxe, I barely fit in it, but I did fit. Plenty of room for my feet but my head was always right next to the mosquito netting no matter how I positioned myself around the sweet spot. I don't want to get bit by bugs when I fall asleep and lean against the netting of a hammock.
The whole bottom entry thing seems problematic if coupled with a 3rd party vendor's UQ too. I don't want to screw around adjusting this or adjusting that in order to make things work. I saw a lot of complaints about this particular issue on the net.