Please use this product, buy good variable speed buffing machine from Harbor Freight
Use the 1000 grit first and follow with the 2000 you can expect to see results beyond your expectations.
During my restoration I was determined not to wet sand the Gel coat, I did not here is what the results were, it remove the orange peel and came out excellent.
I personally did a lot of reading and found this product I will recommend no other.
Here is the web site
http://www.aqua-buff.com/
Here is a before and after shot using this product ...