Proscraper feedback

[Michel16055]

I'm starting to plan the scraping of the hull of my O'Day 302.
I came across a product which I would like some feedback on, is it worth it, does the job, good or bad.
any feedback will do.
The product is called the "Pro-scraper"
link: http://www.hotvac.com/proscraper/default.aspx
Thanks
Michel
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[Ross]

I have several scrapers with carbide blades and they work very well. The idea of attaching a vacuum hose is clever but I am not sure that it is worth the extra 20 bucks.