Welding Tips and Tricks

Been looking at the Miller/Weldcraft modular series torches but would like to see how they are holding up? Do you find yourself switching heads or running one head all the time? I like the flexibility of being able to change the style for what ever project I'm working on.

I use a torch like the Weldcraft but it's also got a button for 4t as well. I don't think the weldcraft have a switch option? They look like good torches I would say they are holding up well.