Originally Posted by
SkyDog75
I'm in the same boat as HillRider, using a Park Tool CT-3 mini tool for everything from kids' BMX bikes up through 10-speed chains. Being a mini tool, it's not the most ergonomic thing ever, but it gets the job done reliably.
The CT-3 is anything but "mini", it's as full size as chain tools get. You may be thinking of Park's CT-5, which is their small chain tool.