I ditched my 4" flatbelt on little giant and went to a Multiple Vbelt setup when I added a jackshaft to slow it down.
The flat belt worked, I used to pour some warmed up honey on it to keep it from slipping when I need to single hard blows. But no matter how it was setup it would randomly fall off :confused:
The VBelts never fall off, and feels like it pulls the hammer head that much harder for a single hit.