Phew! I was worried if there were any bugs that I missed, so thanks for letting me know! Yep, gender ratios (and personality ratios) affect the VIPs, as well. If you set it to only male or only female, you'll only get VIPs of that gender. The mostly male and mostly female options also affect the VIPs, but they're at 25%/75% rates, so it might not be too noticeable. I'm glad to hear that custom mode added value to the game! :D