Add on and existing ressie??s

[NCRedding]

OK, so I plan on making ressies for Dec. 12-17 starting Monday. First question: I'm looking for a studio (prefer BCV, then OKW)--should I do a day by day call, or should I just wait til last check out day, and try to get the whole 5 nights? I'm toying with the idea of doing an add-on at BCV. If I do so, can I transfer my BCV points to the ressie I plan on making for Dec., and release the HH points I use to make Dec. ressie, so that I can have plenty of HH points for my 11 month booking for June at HH? ALSO, I can't find who my original guide was. If I call about an add-on, will they know this, or will I be assigned a new guide? Thanks for the assistance.