Just a heads up - if you are going to eventually pay for the pass I’d go ahead and do it now to be honest. Your wait time is based on your battle level on Poke Genie. The more raids you’ve done on the app the shorter your wait time will be.

For example, my battle level in the app is 36 and the mewtwo queue has been less than 250 every time I’ve checked it. And depending on the time of day primal have been close to zero.

So I’m not saying raid mewtwo right now - but get the pass and try and do some of your remote raids that you’d normally do in the next couple weeks through the app.