I've fixed the problem. I'm sending the HD back. I found a NOS X3 that I am buying.
If I were using amp modeling and distortion, I would not notice the difference between the HD and the older XT/X3's. But, as I only use it for effects only it is very sterile. Sort of like comparing the XT/X3 to a tube amp and the HD to a solid state amp. Or another comparison, I have a Boss DD-5 delay pedal, it does not change the guitar's tone. I tried a Boss RV3 (tried several) and it changes the basic guitar tone slightly (guitar tone loses some body).