I still do the odd 500 to 550g green for others. Definitely need more juice early on, 250 to 300deg starting temp on gun as opposed to 120 to 150 for my 300g batches.
YES I find it more tricky to control on approach to FC. RFC can really get away from me if I'm not concentrating and being a bit more hands on with adjusting temps on gun.
My pan is not insulated so I try to avoid any drastic changes with large temp changes on gun, I'd rather be slightly over in temp and let it settle, than end up chasing to avoid a stall.
Having an insulated pan you should build up a pretty decent thermal mass.
I'm honestly thinking of going back to bigger batches, when I nail them they seem to be just overall more wow than my smaller ones. I think if I insulated that could help with the smaller batches.