aci - clean GF when it is hot - get a sponge w/ a "scrubby" back and use it exclusively for the grill. I am able to clean mine up in about a minute. This also works on outdoor grills - much easier to clean hot!

About keeping burgers moist...I have made plenty of burgers on my GF & use the 90/10 meat. I add a dash of Wosterchire sauce, garlic powder and season salt - mmmmm. Delicious and tender! I realize it is quite a bit of salt, but that is why only a dash.