I have a full contingency of cast iron Stanley bench planes, but I've long been intrigued about forged steel planes. I come acrossed them now and again, like one Jack I recently came accorded with "VBM" on the cap—which obviously stands for Very Best Made, but not sure is the brand. It fell five feet onto a concrete floor at my friends shop, narrowly missing his foot, yet the plane sustained not a dent or scratch. There is at least one other brand. Seems these planes ought to be at a premium, but they are cheap on the auction sites as they are virtually unknown and not Stanley. Anyone have experience with forged steel bench planes? What are the pros and cons of this alloy versus the iron element construction? Weight? Vibration? Chatter? I'm interested in thoughts on these, and especially from those with knowledge and experience with them.