Anyone have or have handled a Freeman 451 Flipper folder or 451 neck knife?

I have been reading about the Freeman 451 flipper folder, and also the Freeman 451 neck knife. It is a newer company that was started by a guy that used to design for Gerber knives.

Anyone have or have handled either one of those models?. How does the folder compare in size and weight with a large sebenza or umnuumzaan?.

Any other thoughts and or pics would be appreciated.