I use a 6Pro as well, and bro, you need a bass specific overdrive pedal. Fulltone Bass Drive mosfet, EBS Valve Drive, or whatever, but all this extra rig stuff is a waste of time and money. All you need is the right dirt pedal, honest. Besides, the 6Pro is 4 ohms min., and your 610 is already 4 ohms, so you can't add anything to your rig.
yeh if i add it will have another amp to supply it.
i know its a lot of money to out loud when i could just get a dirt pedal, but there is something bout having the low end come thru clean then a distorted signal behind
my dirt comes from an metal muff, and ive tried the bass overdrive from boss but that wasn't for me, im gonna try a bass big muff but im still in love with the two rig setup
andy