Looking at the above torch. Can't find much info on it or pictures other than this one. It looks like it has a momentary switch as well as an amp control built in. Is this correct? What I'm thinking is if starting out you set the amp control close to where you want & use the button it will only require minor adjustments as opposed to having to ramp up/down the control each time. Am I looking at this correctly?

Next question would be will it fit an older Synch 250 with a power block? I would assume the 14 pin would plug right in but what style connector for the power/gas does it come with?