Playing with a high handicap is not necessarily sandbagging. If you're a 30 handicap and playing against someone with an 18 handicap, it may be frustrating to the 18 that they are giving you 12 strokes. That's giving you a stroke on more than half of the holes, and they are already playing at bogey golf. But, that's not sandbagging. That's just playing to your handicap. Now, if you're a 30 and you happen to shoot a few rounds around 90 in a tournament, the term "sandbagger" will be flying around. In general, if you're shooting 10+ better than your handicap in a tournament, legitimate questions should be made about your handicap. I know it's easier to be 10+ under your handicap when you're a 30 than when you're a 10, but that's still an awful lot of strokes below where you should be playing. But, as I said above, if you are just playing at or near your handicap and getting a ton of strokes, that's not sandbagging. Sandbagging is when you're playing well below your handicap and still getting a ton of strokes. The guy you were playing with just doesn't get the concept of a handicap system.