The best thing to do is to see a good coach. It can be a little pricey, but if you are serious about improving your game its really the only way to go. You can ask friends to watch you bowl, video
tape yourself etc., but if you don't know what you are looking for you won't know what to work on to correct any flaws.
If you are interested I have a good coach in Farmington Hills, Mi...not to far from Ann Arbor.I personally drive almost an hour to take lessons from her and find it WELL worth the effort.
