Don't know much about the X30 myself. I highly recommend Fly High fat sacks. Most site the rugged materials, I like the plumbing fittings, much better than water bed fittings.
both...400lbs to 600 lbs in pop products and the rest in fly high fat sacks. i would suspect 2k to 3k (sacked out a x-2, xstar, and x-45 but not a x-30)