Eh, I am just not doing 10 pulls because I am impatient, plus since I am a filthy casual and has just started playing a month ago, I don't really grind enough for 10 pulls to be a viable option, I basically spend everything as I get them, and since my team is now strong enough to S rank master songs on score I have alot of gems to spend, gotta spread my gem usage so I can grind events and to relieve my gatcha addiction.
also am pretty sure the game algorithm doesn't have that high the odds of having a great 10 pull, if my sauces are correct
Edit; what I mean ABT gems
[attach=1]
So as you can see, I just splurged on everything
[attach=2]
But then just claim gems and I am good to go again
that's my first master fullcombo BTW, so apparently now I am good enough to fc songs too! Bloody exciting, more gems ftw