TW-I shoot classic game guns as well as heavy fowlers at sporting clays. If I'm shooting for fun, then the light fast guns with 1oz B&P's are great fun. But if there's something to be won, the mass and control of the big guns really adds to my score.
The game has evolved because people and their equipment are better, and the game must be tougher to differentiate. The light game gun is not the right tool for heavier loads, and longer targets.

Out there doing it best I can.