Looking for any recommendations for a regular erotic  partner to accompany me to swing clubs (e.g. Checkmates, etc) on extended dates.

Chemistry is important.  Not every guy hits it off with every girl.

You should search here for women that  go to swing clubs.  There are several that you will find with a simple search.  Then book a regular appointment with them.  Once you have done that, then, if you connected well with someone, book her for a swing club date.

If you don't go with a provider who likes to play, you'll be a spectator, or limited to play with your partner only.  You probably already realize this.  If the provider will only play with you, then no couples will enjoy an encounter with you two.  I'm good at making sure everyone stays happy.  I love to spend time with my partner, and any couples my partner wants to try out.  I'm comfortable with girl girl, threeways, and orgy type encounters.

I ask slightly more (400/H on tour) and I have a 2H minimum for a swinger's club adventure.  

I'll be visiting in March.