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Do you have postal service in west Michigan? If you do, there are many prop sellers that can MAIL you any prop you want to try. They also usually have MUCH better pricing than the locals. If you don't like the performance from the prop you try, you just send it back and try another. The people that do business in this way are usually more knowledgeable about how to proceed in your trials to achieve the particular result you are looking for than forum posters.

I have NEVER purchased or even tried a prop that wasn't sent to me via UPS or the U S Postal service.