I'm usually in a rush so the idea of the HX makes me a little nervous, not sure I want to deal with the temp surfing. That and It won't be plumbed at first, which might be a pain.
It's not that I prefer to do things manually, that just seems to come with the territory. It's always a balance. I don't want to give up the manual control when it results in an inferior product, but the more manual you go the more it is prone to flaws. As usual it's a balancing act.
I also have a Magister Stella (a dragon HX) and while I really like my ECM Scnc, I sometimes miss having the ability to control the brew temperature with a simple flush/wait. I thought resetting the PID on the ECM would do it for me, but I find I just don't do that.
Are you saying you have more temp surfing on the Dual boiler than the HX machine? I think I might be misunderstanding what you were trying to say there.