Brats look great, Wyrman.
When I first used the KC, I too had many blowouts. I attributed these boo-boos on my learning to regulate the flow properly.
Once I got the 'timing' down, the blow-outs diminished and things moved along greatly. Sheep casings can still a challenge due to their tenderness, but overall, I've been quite pleased using the KC for all sizes of sausage.
-Kevin