we had a steer tire blow out on our speedstar ss 15 3 and ended up piling her up, nobody was hurt bad just totaled the rig. We are in the market for another rig. everything is driven casing out here and I was wondering about feedback on a speedstar 50. has anyone on here run one and are they maintenance intensive like the 15s are? we just need some ideas on rigs to look at I want at least 50,000 lbs pull back and large enough tower to run a large casing hammer. any advice would be great.