First lets say, "You are playing with the folks from MCB bring the VM."
After that is said, if you still want something new and different, my vote is for an automag. They can be had cheap on fleabay and are very reliable will work with properly managed co2. Just like anything else. You have $$ left for a lvl10 bolt if it doesn't come with one an extra co2 and teh anti siphon tubes and exc to manage it.