Aid you to balance your self the plank siding. Then return and gently scrub them with just your fingers a bit and then rinse them clean. Step 1 - Need to know the best way to do a Kickflip.
So, clean your skateboard bearings more often. Try cascade over your knees on mid-section. Any excess bondo can be sanded off and the board should ride exactly like new. Professional board could be in the $100-140 scale.