Could mounting a rake attachment to the front of the mower help lift the partially cut brush so the cutters would have a chance of lower the cut further on a second pass? I was thinking of a home made/welded device equivalent to a number of garden rakes (not leaf rakes) put together end to end...or something equivalent.
"...ads long as you lock the hydraulic lift at the desired height." I thought that when to hydraulic arms are set to the lowest position they are merely floating and so that would be the proper position for those. With the roller in the back, the skid shoes could be adjusted to prevent the front of the mower touching ground level, which very likely could damage the blades. In other word's I'm still not sure exactly how this is going to work!
A front mounted rake attachment will not work as it will only clog up the rake and eventually become so clogged it become a fire hazard.
A flail mower works best when the flail mower is set at the 2 inch cutting height and left there as the flail mower rotor shroud is at its lowest height and will create the highest pressure gradient/ water gauge Hg. / vacuum while operating at 2,200+ Revolutions Per Minute to allow the side slicer/scoop/spoon/ hammer knives to slice the brush as cleanly as possible and also at the same time lift the clippings up and over the flail mower rotor and back down to the ground.
If the flail mower is equipped with skid shoes they are designed to do one thing only to prevent the flail mower knives from striking the ground.
If the flail mower is being supported by the caster wheels at the desired cutting height, the front casters will follow the ground contour and the rear casters or the rear roller will follow climbing any mounds that are as wide as the rear roller and or the casters.
If the flail mower is allowed to float with the properly adjusted top link creating a level plane from front to back by leveling the flail mower with a torpedo level on the gear box the top link needs to be locked at that level position with its locknut and left there. The same rule applies with a hydraulic top link as well.
You do not need anything other than the flail mower to mow with.
If the brush is thick and tall you simply have to make your first passes around the edges of the property in a low speed and just let the mower work at the rated engine speed for the power take off to operate at 540 Revolutions Per Minute to create the 2,200+ Revolutions Per Minute Flail Mower Rotor speed.
Once you make your initial pass you can take half cuts and operate the tractor cutting and recutting the brush at the same time at the same speed maintaining a 2 inch height of cut.
You will be able recut the brush the next day if you have a flail mower with side slicer knives as they create the greatest lift to recut the material.
