Steve, when you bleed them, put a piece of fuel line over the bleeder valve. This let’s you over fill the master a little and when you pull/pump the pedal to force fluid through this gives the fluid somewhere to go and you can see when the air bubbles stop. Also, I never could get the ven05’s quite right if I tried to center the rotor in the caliper. It always seemed to want to be a little closer to one side than the other to get the pads to contact the rotor at the same time. I usually leave the brake hub loose so it can move on the axle, pump the brakes a few times and then tighten the hub while someone holds the brake on.