At this point I am kinda at a loss of what to add here,,,

I would assume that your prep and technique have to be at least close because you were using a Shavette other than maybe some angle adjustments you should be there...

Your first razor I am going to have to assume was the one I gave you, which I know I tested, in fact after I sharpened it I really didn't want to give it to you as it was a very nice little shaver...

The only things that stood out as possibilities to me, when I read this were..
One the testing of the first edge, other then just shaving, that is a sure fire path to a dull edge, but you didn't do that with the Dovo, right????

Stropping would be number two, but I don't think you stropped either one before you at least tried shaving the edge, right???

Actually that is the real question, did you do anything but try to shave the patch from sideburn to jaw line at first ?????

Now I can see one razor from Lynn or myself maybe slipping by, even though both of us test shave every single razor, and I actually remember that razor as being way above the curve... But for two razors, one from Lynn, and one from me, to both be dull, is pretty long on the odds list...

There has got to be a step in there that we are missing..

Now if you dulled that razor I have no problem doing a re-hone for you either, but the shipping is on you since it was a freebie...