Motorola Droid X :: Dialer And Setting Default Number

Lots of my contacts - especially my "favorite" contacts - have multiple phone #'s, which is pretty typical. So it's a nice feature in the dialer that lets you select a specific number - home, office, mobile, etc., to dial every time you pull up the favorites tab within the dialer screen. I by mistake checked "use as default number" for one particular contact, but now I want to deactivate that selection and have no default number for that particular contact.

I know how to switch the default number from one to another; is there a way to deactivate the default number and just have the phone ask me which number to dial, e.g. home, office, mobile, etc.? I've been trying to tinker with everything I can to no avail, and I've also been shut out trying to answer this question online. Only thing I haven't done is call Verizon.