As far as I know feeded clubs are absoluely fine outside of the UK. So don't worry you are still "compliant".
If players are loaned to you it is entirely up to you whethr you play them or let them rot in the reserves.
I am playing as Basingstoke and was just given a 19 year old Goalkeeper on loan by my parent club. I don't think anyone will mind if I tell you the name of the training schedule he is on. It's called "Kill the B@stard" and he is training as a AML while rotting in the under 18's which he is not eligible to play for.
1 week gone and he is not injured yet this guy is strong.