I know nothing about the sharpener you are speaking about, they may be the best in the business. I just want to tell a little story about a sharpener that everybody else uses in my area. I use both a Frame Square Saw and Morso Chopper. Everybody was telling me how good this certain sharpener, no names of course, was so I decided to use them. I got 3 sets of knives for the Morso sharpened and 2 saw blades, supposedly straighten, balanced, & carbide tips as needed replaced. The knives came back blue from overheating and there were several carbide tips that flew off the first time I used the newly sharpened blade and there was a vibration that I did not have before the sharpening. So what I am saying is that I take recommendations about local companies, that normally don't work with the framing industry, with a grain of salt. I have researched companies that other framers nationally have stated as being good and I have not been a bit disappointed. I now used and will stick with the companies I researched because of the quality, customer service, and proficiency of their products. I recommend that you do the same research because it can make the difference between you putting out a good product or a mediocre product.
Cutting frames for picture framing need sharp blades and knives for both the saw and chopper. Because of the hardwood in many mouldings & the amount of Gesso on the moulding the blades will dull and need to be sharpened quicker than one would expect. For frame moulding there are certain things that have to be taken into account when doing the sharpening. The home building and cabinet making trade doesn't work with the same types of products that we work with on a normal basis so they can grab a saw blade off the rack and it works for them. You can be a good sharpener for the home building trade but sharpening and balancing blades or knives for the picture framing trade is totally different - that good sharpener for the building industry can go from being excellent in their field to a complete disaster for the picture framing trade. Personally, I recommend that you speak to the companies that are getting good comments on the Grumble - believe me, we are generally fussy about the vendors we use but we need to be, customers do not like open mitres, chipped corners, or sloppy cuts. I recommend checking out Quinn Saw and Ultramitre, it may save you from some future headaches and Tech Mark for chopper knives. just my $0.02 Joe