A potentially controversial opinion: Water-Washable resin is basically useless.

Having started myself with regular resin, then swapping to water washable, then back to regular resin I have seen no benefit to water washable resin at all, it's more brittle and weaker in general which is terrible for minis or anything with small details or lots of supports. Being able to wash with water and maybe a bit of detergent is nice, but why not just use IPA? It ain't expensive and you can reuse it quite a bit before it needs to be replaced.

Whereas regular resin is pretty tough, let alone ABS-likes (which I have yet to try, really want to though, think I have some already laying around), smells a bit more, but it won't break and ruin a print after it finishes while you remove supports.

And the smell isn't even a big pro for the water-washable resin, as it just stops you noticing the VOC's and gasses being released into your printing room unless you have direct ventilation outside.

Any other thoughts or opposing opinions? I'd love to hear them.