Is DP Ultimate tough to fly?
you sound pretty competant to me. the only thing to remember about going from trainer to something like an Ultimate is that theplane WILL NOT try to correct itself. it will go where u point it. no dihedral. i would suggest add it to your hangar if you can get one, build it right and have someone fly it. giving you a chance to fly it as well. hard to say if your ready for it or not just from a post on the net. just depens on your skills and how fast you learn.
Ultimates are probably the best bipes around, with very good habits and awesome performance.