I got the ace in today and have been trying it out. Today only flower. Tomorrow, I'll try some concentrate. I've been running 525 after burn out and haven't played around with temp yet. It seems to handle slow or hard pulls equally. It was a nice surprise to get the big league bubbler and hybrid bowl in at once. So far I'm not thinking too deeply about the green o-rings. I'm enjoying some homegrown crescendo rbx1 and keep swapping between glass bowl and metal and big league bubbler and zob og beaker. I'm diggin it.