Some fail some people get lucky if you start hearing to much rumble I would drop the sump for a look see and clean out the some screens. Early small bits will get caught in the screen but make it under the screen baffle plate so make sure you pull them and clean them. Some of the swarf you will find in them are from manufacturing as you just can seem to get it all out. If the bearing goes you will find cage parts it will be the torsional damper. Now about the transmission, unless you thrash the heck out of it any of the failure that have occurred on the early models were rounding of dogs and and a selector bolt coming loose. You would not see debris from that. Another thing since your new to the bike and your hearing might be better is to make sure the clutch is adjusted correctly with the require 2-3 mm of free play so the needle bearing on the lifter piece is not sitting there spinning away as it will create a odd sound. If you decide to drop the sump pan use some permatex to attach the new gasket to the sump pan and then just apply some light grease to the engine side. This will make it so you can drop it the next time for inspection without having to replace the gasket.
