A while ago I started experimenting with reversing C41's at home to make positives. It just so happened my B&W developer of choice was Xtol and Rodinal/R09 one shot. So I started with Xtol as a first develoepr, originally barely getting any images, even after letting it sit overnight. Eventually got to the point where I was processing at 40 degrees celsius and experimenting with time, I found 40min+ Xtol 1+1 worked pretty well (and 2 hours for Rodinal/R09 1+50, agitation every 10 min) I used light reversal, then using C41 developer in place of the colour developer (since my C41 developer was used many times and well and truly exhausted, a process to completion was more consistent - until I exhausted it truly and it couldnt fully 'complete'). Anyway, what I noticed with my Xtol results was that the orange mask was gone and I was looking at 'regular' chromes (Reala, Superia Xtra 800) - same process on Astia as well - but seems several stops over developed on Kodak EIR (I have 1 roll left, not using it yet). My Rodinal/R09 one shot results didnt affect the orange mask, I just got positives with an orange mask with those. I was wondering what it is in Xtol that is causing this? I was considering using a modified Mytol recipe (but a lot stronger, so I can have normal processing times) to do the same.