mine finally arrived in the mail!
i've been typing on reds and browns at home for a couple weeks now. after opening the FC660C and typing on it, my first impression was actually huge disappointment....
"this is it!?" is what i thought. i also felt that the keys were extremely heavy. i'm surprised that reds, browns, and these topres are all 45g, because i don't believe it. it's clearly reds, then browns, then topres in terms of force required.
i'm starting to get used to the topre the more i type on it, and the more i type the more i enjoy it. i suspect it might become my favorite after a week. i guess time will tell.