As video maker, there are some options that could be more "precise", I think it could help in some specific situations :

Make the /opt blood, bloodstains and bruises specifics to uke and tori.

For exemple, if I only want to show blood from uke, I could type /opt bood tori 0. You could let the general one (/opt blood 0) and add the specific for each toris.

This would probably go further if you were more specific on the ops you'd like changed and what additional changes they'd need.

These options :

/opt blood uke 0/1
/opt blood tori 0/1
/opt bloodstains uke 0/1
/opt bloodstains tori 0/1
/opt bruise uke 0/1
/opt bruise tori 0/1