I've got a handwritten conversion, but it's the same as Thermomixers sticky thread TM21 to TM31.
I generally drop the speed by one level, and attach my butterfly if a recipe asks for a reverse speed. Most recipes are fairly forgiving, and the more you use the machine, the more comfortable you get with adapting recipes. I tend to trust my instincts rather than blindly following the recipe, but it took me a while to realise that.