I bought this beast awhile back after my Ion went poo poo on me. The weekend I got it I took it out to the field. First off it was really easy to set-up. Turn the allen wrench 2 full times on the HPR and turn your LPR to around 50 (this is my settings shooting at 285 fps). Nothing broke/changed pressure wise all day. It will bounce a bit once you start getting into higher BPS, but that just makes it easier to walk. It's also very quiet when you are shooting paint, not so much when you are dry-firing. The only real problem I have is the stock feedneck. Halo's don't fit very well in them, so just go out and buy a New Designz no-rise. Everyone who I talk to that has a Timmy' say they love them, and I love mine to.
These are great markers. Put down that DM, Ego, and Shocker and pick up a Timmy. Worth every penny.