Now keep in mind this is based off of a limited test based on simple number crunching, I have no real world experience with dynaglide(or whoopies slings for that matter, although I will eventually). This is also basing a weight rating from the understanding that splicing degrades the rope by no more than 10%. If there is new information out there debunking that, please feel free to let me know. Alright, enough disclaimer and "I didn't tell you to use dynaglide" Mumbo jumbo and onto the numbers.
I did some playing around with the ultimate hang calculator app on my phone just to get some hard numbers regarding hang angles, weight forces, and what not. I changed the hammock length, ridgeline, and tree spacing around at a given weight and angle and none of the forces changed so I didn't bother with doing that for the actual number testing.
What I came up with was this:
At a 20 degree angle with 600 lbs there is 877.1 lbs of force coming through the suspension
At a 5 degree angle with 200 lbs there is 1147 lbs of force coming through the suspension
At a 10 degree angle with 200 lbs there is 575.9 lbs of force coming through the suspension
At a 10 degree angle with 300 lbs there is 863.8 lbs of force coming through the suspension
Now assuming the whole 10% degradation principle for splicing that brings dynaglide down to a 900 lb breaking strength. Well, utilizing the numbers I provided even a 600 pound person could hang at a 20 degree angle(not bad, but still less than the ideal 30 degrees) and not break dynaglide. It would take a 200-300 pound person hanging at either 5 or 10 degrees respectively to come close or surpass the 900 pounds in the case of a 5 degree angle. I don't know about you but that a very minimal angle! You would have to hang your hammock guitar string tight to even achieve that angle when the hammock is loaded.
I realize this is speculation based on numbers but the numbers are pretty definitive. I also realize that these are based off of static and not dynamic forces but in all honesty, unless you'e Shug practicing your next act of acrobatics, the dynamic forces from getting in and out of a hammock should not even come close to bring these numbers to a failure point. Now I am certainly not trying to force the idea of using dynaglide on anybody, if you don't feel safe using it then definitely don't use it. I was just putting this out there for the folks that were maybe undecided about it and could use some more info in order to make an informed decision. As always, HYOH and Happy Hangin folks!