When will Hoover sell the improved 15" FloorMate w/tools? I only see H3044 (15" white SpinScrub bristles) FH40010 & FH40030 (13" w/improved [green] SpinScrub bristles) The Green brushes have twice the bristles as the white ones & I guess the FH40010 & FH40030 outclean the H3044 & previous mdls. Will the Grout brushes fit a H3000?