Soft floor area around the heater vent directly in front of stove made DW unhappy. FR overcut the flooring (when they cut the 4x8 inch vent hole they cut an inch past on all four sides) for heater vent installation. Thus, soft area around heater vent directly in front of range. Added 1/2 inch plywood and two aluminum braces to strengthen the floor area. DW thinks it's better than high heel sneakers.
Tomorrow I will tackle the soft floor in bathroom caused by same overcut of floor vent heater installation. Supports are further away so will have to devise a different frame support but plan to use 1/2 inch plywood and 1 inch x1/8 inch aluminum angle.
Love the V-Cross but wish FR used a little better installation process.