as far as oily woods, such as Cocobolo, EIR, teak, also some cedars, Ect... The easiest way to help insure a good glueup is to use acetone to the surfaces just before adding the glue. This will remove the surface oils and to some respect (depending on species) just below surface to allow a good bond with PVA(titebond) type glues, CA, and epoxies. Just an FYI
MK