I have ONE of the first ones, but not THE first. I think it's 3rd or 4th. He was always talking about his steadi bumper but I think his plans were a little over-engineered for what we need. I mean, it really should just be a bit of foam padding to protect the rig. If anything he should make something similar to what Ron Baldwin uses and make a bumper with a platform to rest the sled on TOP of. Maybe I'll mention this to him.
I love my cart. It's rock solid and super customisable. A bit heavy for air travel (I end up putting the wheels in a separate bag to keep it under 100 pounds, so it's still doable, but if you fly a LOT, maybe go for an inovativ).
What I like most about it is how quick it is to build and tear down. I save easily 20 minutes a day compared to my old backstage cart.
He's backordered on his steadi masts right now, apparently because of aluminum availability. Still worth paying a visit and playing around with one.