RE: Good choice ?
I agree with Matt on this one. The K107 will feel a LOT bigger than your current Bee. The K97 has a little less volume (still +17 liters) but it is a lot wider. The width offers stability, and also pushes the board to the surface immediately when it moves a little.
However, the Bee is a lot more freeride oriented than the Kombat (i.e. quite different characteristics). A similarly sized Carve would be more like the Bee, earlier planing and faster for blasting.