I don't know if it's the best, I'd imagine that's an opinion.
I think it's pretty darn good though and it's all I use. As far as where to purchase? Macteconline.net is the cheapest I've found along with free shipping.
877-622-8321
They also carry the line at West Marine if you have one local. It is on page 340 of the new 2010 cataloge. It was highly recommended by some members on a post last year.
I just purchased a 1993 Parker that been sitting for two years. Its a 25 dv pilot. I notice a grayest materail on the top of all the glass. Could someone advise me how to clean this boat.
I bought a buffer from Harbor freight and used 3 m compound on the 05 we just picked up. The boat went from a dull tan to looking like a new boat . Was well worth the effort.
https://www.macteconline.net/servlet/StoreFront is a Collinite Wax supplier. Prices are good and shipping is free.
ex
2 pint bottles each of Collinite 920 Fiberglass Boat Cleaner and 925 Fiberglass Boat Wax for a total of $37.78 and free shipping.