Best glass scraper product?

[msjboy]

Through a bit of neglect, the area just above the sand line is quite encrusted with algae and some corraline algae.... its probably 9 months worth of buildup since inception of my new tank. I do keep the upper glass area clean with a mag float but not the area below due to fear sand will grind scratches between the magfloat cleaner. What is the best brand of tool(s)to clean this? I have Kent scraper ( with handle, removable yellow metal blade ) but it will probably take hours so I gave up. Did anyone buy the new and improved mag float-scrapper combo device yet: flippercleaner.com?

regs
msjboy