I made that exact same switch about two months ago. If I remember correctly, you are running two oxycons with yours. I've been on only one oxycon putting out about 4 LPM of oxygen and propane with my Minor and Lynx.
Until recently I've been running it with the blue valve and the green valve full open. I thought this would provide the best possible oxygen flow with the least amount of flow restriction. I then adjusted the flame size using the red-propane valve. I read on another forum (
www.thegldg.com) that the blue valve, in addition to providing pinpoint control, also increases the flame velocity greatly. I played with it a little and watched the flame and believe this to be true. So, the last couple days I have kept the blue valve closed to see how that works. I now generally keep the blue valve almost closed or full closed except when I want a pinpoint flame.
When working soft glass I find that the Lynx is a little bit of overkill, especially with the blue valve open. There's too much heat and flame velocity is too high - that soft glass will boil in no time. I've learned to work further out in the flame and turn down the propane. Recognize that the Lynx is a taller torch than the Minor also. This difference will also "throw you off" and take a while to get used to.
If you worked with a Hot Head before you had a Minor then you know the transition will take a while. It will just take time and practice. Soft glass is very sensitive and you are now armed with a lot of heat. It's just a matter of controlling it.
There are some links to Lynx info on the
www.thegldg.com forum that I will add to this thread as soon as that forum is back in service. It's down at the moment (temporary, I hope).
I hope this helps, I feel like it's an incoherent mess of semi-random thoughts.
Best of luck to you. Your patience will pay off and you will love your Lynx.