The most famous shoe tree manufacturers in the U.S. are Woodlore and Rochester and the former's top model is Ultra and the latter's is Washburn. They are said to be better from other models with their full contoured heel, along with a brass knob, and especially with their high vamp so as to completely fill the shoe for a precise fit. I was wondering, if you have both Washburn and Ultra, could you please give feedback as to which one is better, in what respect, et cetera. May be it is all because of being manufactured by different companies but for some reason Washburn by Rochester is much more expensive than Ultra by Woodlore. Does the Washburn justify the price difference? Thanks.