UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
I use an Optolong L-Extreme with my OSC to gather Ha with RGGB/"Ha-Oiii extract Ha" and O3 with RGGB/"Ha-Oiii extract Oiii" and I also have an
Optolong L-Synergy filter which gathers Sii/Oiii. To produce SHO images I then need S2.
I have tried using the algorithm RGGB/Sulfur II (SII) and combining this result with the Ha and O3 extracted above.
I also tried using "supported/Adaptive Airy disc" to produce a color image and then extract the channels and use the red as S2. i then combine this either with the Ha and O3 as above - or I run "Ha-Oiii extract Color", extract channels, save the red as Ha and average the green and blue from both filters (via Pixelmath) to yield O3.
In all of the cases described above, there is a result but the colors are different.
My questions are:
a) is there one approach that's better than the other - whether more reliable or more faithful in the results?
b) what is the standard way of processing the Optolong L-Synergy in APP?
Tks
Gil