Update how long I have used my Clark
I have used my NX-250 for at least 7 years, and get along with it very well. The 15 foot distance seems to work pretty well for me. I find that with an empty Clark, poles installed, and all zippers closed, that I get the best lay when both top and bottom pole sets are pretty droopy, and I like the foot end to be only a little bit higher than the head end, nearly level.When I am in the hammock, the zippers should close easily, and there is a little slack in the cover/bug net. This works for me, at least, so it might be worth exploring. When I learned the Clarks were no longer going to be available, I ordered one of the newer NX-270s, and just received it a couple of weeks ago. I have not yet wrung it out yet to see if there is any difference in lay. I like the inside access of the pockets though! Good luck with a great Hammock!! I hope this helps some.