I don't think it's bad to have a gentle routine whether BF or FF, as far as I know infant led feeding means basically feeding your baby when he is hungry and not making him fit a pre-determined routine or schedule. From the sounds you are not doing this, you are just following his natural routine and I don't think that can be a bad thing - as long as he is happy then there really isn't a problem. Trust your instincts.

Bon