Let's rule out a cheap repair...If you buy pricey stuff, expect to pay the fiddler later on.
If the comment about taking over a burner and increasing the temp points to one specific burner every time, I would say the touch board might be affected. If this occurs after the top has warmed up, it would be even more reason to think so, since resistance of the touchpad is obviously changing and the board is not keeping up. A fairly common problem with Dacor, it appears. Remember, if you order from Repair Clinic the part can always be returned for whatever reason.
If you can open the unit up, it may help to disconnect the ribbon cable from the top pad to the touch board and apply some WD40 to the terminals it plugs into, then re-attach. Sometimes resistance can build up between the contact points of the board where the ribbon meets.