I've just sold my Ferris 36HydroWalk (outstanding unit!) and am replacing with either the Ferris 48" IS1000 or the Zmaster 147 (44"). The Ferris has a 21Kaw andthe Toro 147 a 17Kaw. Any input on either of these units. The Ferris is about $6400 and the Toro $5900. Both seem to have strong structures, hydro assemblies...etc.....Controls and deck lifts are about the same overall, but in different locations.