I was contacted today from Jason at Vanguard to see how I was getting on with my marker. I told him that I'd not used it much, only in the back yard as I'm waiting to use it at the Big Game.He collected my marker from my home (yes.... collected it!) Took it back with him for new upgraded board & new upgrades. I can't wait to try it out should have it back on Tuesday. Now that's what i call service!