Never had a Z before and the thing just passed 50 hours. Is there anything i should be doing/checking to make sure this thing keeps in great condition and use? Think the tune ups are just over $100 but is it worth it at such meager hours? Not sure what i should be looking for, like i said i never had a Z before, in order to make sure this thing stays in tip top condition and performs at its best. No problems in use so far. If there is anything that i can do myself that would be ideal. Advice welcome!