Hi Guys, I have run into an issue with my later model (post '08) SWR Red Head combo that has proven to be a challenge to resolve. At some point over the last few months "1" of the casters on the combo suffered some damage to the point where the last time I had it out live the caster just fell off when the combo was picked up to load in. The 'receptacle' (for lack of a better word at the moment) appears to be displaced form it's place on the bottom of the amp. It recently worked it's way completely out of the enclosure a few days ago and is currently lying on the floor in my studio. I researched several mgr's and have had no luck finding a repair/replacement option. Has anyone here had this issue? Are there any suggestions? Also, can the original casters be 'upgraded' to something more sturdy/durable (like possibly casters with larger pneumatic wheels/tires)? The wheels on the original casters are a hard plastic and have begun to show signs of wear like chips around the edges. Any help would be greatly appreciated.