Any recommendations for a good massage with release in the downtown area? Incalls preferred.

Mission Valley and plan to "release in the downtown area", you are one hell of a shot!  

Seriously, I have always been disappointed trying to find the best of both worlds in the same provider.  IMO, you either get a good release and a half-assed massage, or vice versa.  I prefer to see a FS provider, get my release, go get a massage at a legitimate spa, then hit the sheets for the best sleep ever.  In SD, Town and Country Hotel has a nice spa on the grounds with experienced CMT's, and there are plenty of ads here and on CV for FS providers.  Just my opinion.