VPN + Tor is practically the same as just using Tor, the difference being that your ISP no longer knows you're using Tor (they just know you're using a VPN) but you vpn provider knows you're using Tor.

From the perspective of the website, you're using Tor in both scenarios.

I use Tor with a VPN just because I don't want to bother turning the VPN off but I know it makes absolutely no difference in my experience.