Thanks Capt.Bob. As far as flushing bearings, if you're going to clean a rubber sealed bearing, remove the seals and you can soak them in a spray brake cleaner or spray carburetor cleaner. These cleaners have acetone and toluene which are great grease cutters and they dry clean.
Soak the bearings in a glass jar overnight and pull them and blow them out with compressed air. If you have an air compressor great, if not you can use the cans of compressed air used to blow out computers. Blow the bearings out, add 1 seal, add 1 or 2 drops max of light oil, install the other seal and you're ready to go (be careful not to push the seal too far in).
For shielded hybrid bearings you can leave the shields on and soak them the same way. Pull them and drop the oil directly on the shield. The oil will dissipate through the shield and reinstall the bearings. As far as mixing oils go, I wouldn't do it. I would just clean and start fresh.
The ceramic balls don't need much lubrication to begin with, they're low friction and if you put too much oil in them they're just not going to spin freely. Whatever you do, don't put hot sauce on hybrids it just wont work. Hot sauce will work on stainless but it's a waste on ceramic balls. REM Oil works well because it's very light. We also sell a synthetic oil that can be run on ceramic balls or stainless. We sell it in a 12cc syringe and it works very well for hybrid bearings.