I think you made the right choice, especially with the Bruce.
I do alot of anchoring and the Bruce has never even come close to failing. Yes, it does reset itself because it tends to ''roll'' and dig in with the side flukes to remain set in wind shifts and tidal shifts. And it does work quite well in sand and mud also. By the way... I have just installed a windless set-up an a twenty-seven foot power boat. I set him up with a seven point five KG. Bruce so you should be good in winds well in exess of forty-two Kts. depending on the bottom.
Watch out with the danforth. If it drags it will trap weeds and or rocks in it''s flukes and then your all done. It won''t reset itself. If it breaks out it might not reset itself.
Also, the Bruce can be used with much less scope if need be, and be sure to use about one boat lenth of five sixteenths chain for your boat.