I have a Stopclock Pro that I bought about a year ago. Needless to say, I really like it! But having moved into a shared darkroom, I find myself in a bit of a pinch. There are two enlargers, a Durst 1200 with a 500H head and a Fujimoto G70. I know that the 500 head does not work with the Stopclock, but what of the G70? It does not have any extra controls of any sort - just the knobs for colour correction. I am not keen on plugging in my Stopclock to experiment, I suppose that would fry something in it. From the information on your homepage, I gather that Fujimotos doesn't work with the Stopclock, due to being "closed-loop control systems". Does this apply to the G70 also? Are there any exceptions when it comes to Fujimotos?