To be honest I tried it with thirty bees 1.0.0 and I even opened github bug report … Recently I tried it on the custom theme I bought and it doesn’t work. But the developer kindly proposed me to make it work for some cash … we didn’t negotiate the price yet because I’m on other stage of the project …
I think the best plan to get this happen is to set up a simple test shop with demo products, then tweak Backoffice -> Preferences -> SEO & URLs -> Schema of URLs until URLs match those in your current production shop. Product URLs matching those in the current shop should make SEO happy, no matter which shop software generates and handles them.
That’s a common setting for all products, so comparing a few typical samples should be sufficient.
“You” does already, thirty bees claims to be PS 1.6.1 compatible and anything deviating from this is considered to be a bug. That’s how I understand various 30bz blog postings and what I observe on bug report reactions. Which means, reports like this topic are mostly a confirmation of the successful implementation of this policy. Nice, isn’t it?
If you have the Panda theme already, feel invited to set up a test shop, slap that theme onto it and simply try. Chances it just works are very good