So I just hit 30 and unlocked Scholar. I was wondering if continuing leveling as an Arcanist while soloing is the best way to go? Will this still level my Scholar as well? Or do I need to level as my Scholar while soloing as well?

I know that leveling as Scholar will level my Arcanist at the same time. I was just wondering if it worked the other way around, as I have not tried it before.