Would appreciate anyone who would share their experience with the 4430. Spoke to sales at Oliver and they don't seem to know too much about their machine. This model has "German" made carbide cutters, 68 in total. The 16" model, 4420 has 90 cutters. They did not seem to know why; and, more importantly could not explain why the narrower head needed more cutters than the 20".
Trying to find out how good/bad this machine works, as there is a restocking fee if it is returned.