I will be there sunday also.
Yes you need a bit more right thrust than the stock. Mine still climbs to the left, but i am perfecting gradually a mix on my Tx to counterrract this.
I will be getting some APC 14x5N this week to hopefully try out. Only problem is that its twice the price of the Bolly prop.
As both Archie and I have said i think the 13x6 pulls the plane too hard and fast at low rpms- a prop that slows the model down should make transition to 3D even more comfortable me thinks.Hopefully the 14x5N fits the bill. Will be interesting to see how it effects the side thrust.

AsM
make the breather tube just long enough to exit through a hole at the bottom of the cowl. If your tubing is the thicker stuff any stray gloopy blobs of oil should not block it.