I thought about the bladed cutter for my A3, but after doing a lot of research, I ponied up the extra $$ and bought the Silent Power spherical cutter. I think that in the long run, it will work out cheaper than replacing full-length blades, whether HSS or otherwise. If I get a nick on one of the blade inserts, I just turn it 90 degrees for a fresh face. Each insert has four sides, so........
I'm also not sure that there are any third-party blades available for Hammer jointer/planers, so if that's the case, you are pretty much locked into Hammer accessories.
Good luck,
Frank