Thanks for this! Yeah I was using collidertag and not having any luck. Ran quick test in a stripped down scene and obviously worked fine. I still don't really have my main scene responding properly but seems to have improved with more subframe . I think it's a just large particle count and PLA animated collider objects that it doesn't like.
Will keep plugging away for now, perhaps i'll strip it down and post up a scene file this afternoon - if anyone has a moment to see what i'm doing wrong then would be much appreciated! 😉