The Ratio of FT8 station to SSB stations on 10 meter, maybe 100:1? FT8 is a "watering hole". A watering hole is where the animals go to get a drink, hence there are a lot of animals at the watering hole at any given time. The frequency of the watering hole is 28.074 USB. If you hear signals at the watering hole then 10 meters is open and you can work DX there.
Just where do you listen on SSB? Kinda hard to say actually. Everyone has their own idea as to what a calling frequency is. But there is NO doubt about the FT8 "watering hole". None at all. Can you work DX lately on 10 SSB and CW? Yep, I do all the time. But you can work a LOT more of it on 28.074 with the FT8 mode.
Why not join in for a while? See if you like it. No real cost with your 7300, just need a USB cable. The software is free. You too can work some DX even way up there in MN. Now don't get me wrong, the further north you go from the equator the worse the DX conditions are. That is just the way it is, but you can still work plenty of DX even up there.
As for working 10 meter DX on SSB and CW, you are of course watching a DX spotting network like DXsummit like a hawk are you not? Because if you are not, you are missing the DX by not being on the right frequency at the right time. You can focus the spots to just 10 meters if you like and to just USA and Canada spotters also. That's what I do.
So set up your rig for FT8 and get a feel for all that sweet DX that will be on 10 meters EACH AND EVERY DAY. And also "tune" your computer to DX Summit
http://dxsummit.fi/#/So you can look for phone and CW contacts being spotted and things will start to looking up for you and your DX'ing endeavors. If you need any assistance with any of this, then don't hesitate to PM me here or send me an email and we can talk on the phone and work out any of the kinks. Have a great day and good DX. 73 James K0UA