Most of my test have been done on PAL and PAL-N decks, since I am from Argentina.
I have some NTSC and NTSC/PAL decks too.

So far I haven't seen any hifi deck by any other brand that has Y/C separation internally to output Svideo.
Still, I haven check'd all the decks that exists. Yet so far the Sony's are the most compatible with this mod.

Regarding dot crawl, i have done some testing but also working on a separate board for adding extra comb filtering and noise reduction (optional) on the circuit.

Ofesad

So the big question is, Where is the mod? few people asked this question over the years in this thread but no answer yet.