spammers man. Theres been an increase for some reason this week.
Don't worry though, the mods will get them.
Just report them with the caution sign icon on the top right hand corner of their posts.
And what is the G-Mad?
I have never tried the GMAD but I do use the EMAD2 and it sounds great on my big kick. I can't imagine the GMAD would be a bad choice based on my experience with Evans.