if loft insulation is good is more chucked in over the top better

[zippitippitoes]

..as in big yelow rolls

say yes as i have just done this in a rather hpahazard way

Yes, but you have to leave a small strip at the edges free to stop condensation/damp building up.

i didnt go to the edges too chokey and unsafe

thye original insulation is fairly well laid mine is just chucked around