I made my buckle setup, just like Jeff's, this past weekend. I went to West Marine yesterday and bought a few feet of 3/16" cord with a 1200# breaking strength and replaced the spectra on my HH. I think I'm really going to like the quicker setup and adjustment with straps and buckles. But, I agree with Jeff that it can be hard to loosen if you haven't laid in the hammock a little while.
Once I opened up the cover over the knots on the ends of the HH it wasn't nearly as daunting as I thought it would be to change ropes.
"Work to Live...Don't Live to Work!"