I have Ridgid BS too. When I bought it – it was absolutely horrible, I actually thought to return it, untill I carefully read “Band Saw Handbook” by Mark Duginske. He describe the bandsaw taming procedure very clearly.
I balanced wheels – vibration magically disapears, then I carefully adjust wheel position and make them coplanar – blade magically stop wandering and I was able to adjust ball bearings and guides. But it was still not perfect. I have to admit, I sent at least $250 for blades, I bought all types of brands available at different stores (HD, Lowes, ACE, etc) – non of them work. I finally bought professional blade over Internet 4 TPI, 3/8
(do not remember vendor now) for $65 and after that this beast work like a charm.