Hi Ian,
How about I take a paid Platinum printing day course with you and I can look at this at the same time? I am around in Neuchatel end of January beginning February virtually any time/day that suits you (not Sunday 7th Feb though) ., Basel is not so far for me. - I am also interested in seeing the LC3+ system you have as I just bought a 50x40 reflector and 600W 6K MH lamp with ballast. I've been printing silver since age 10 and now am 62, equipped for 4x5 with Durst Multigtaph and L1200 condenser head, lith printing is what I love, but have been doing mostly Digital studio work since last 8 years. Now need to get to large digital negs and wet hands , and also actual 11x14 negs. I have done some salt printing but not yet platinum. . Got equipped 15 years back but never got to it because of work. I would be looking particularly to the POP methods, Mike Ware and possibly B+S Ziatype. I have an electronics background as well, so I think we have quite some common ground. Let me know if you have some time in early 2021. Alan