thanks it is just that
there is so many points of view a bit of a minefield to a new bee keeper so confusing that i dont want to get it wrong and give my bees the best chance as they are living things i would hate to be responsible for their death thru ignorance thanks again
Best thing is to get food in before it gets too cold. (And strong syrup is simplest)
With a single-brood national, they cannot take too much.
You should have about 8 brood frames-ful (totally idealised 100% full, not just as full as you'd ever see them) to get to 40lb/20kg of stores as recommended. Normally this will be more spread out, so estimate the % and add them up.
If you've got that much stores in place, relax.
Feel the weight of the hive. Feel the weight through the winter and only worry if it feels seriously light.
If you ever think it feels 'so light it must be nearly empty', then you can add fondant - even in midwinter.
On the other hand, if its too cold for the bees to take syrup (let them tell you) and for whatever reason you don't yet have enough stored away in the hive, add some fondant right then.
Those are the conventional ways.
A minority view is to give fondant ahead of winter, whether it is needed or not.
That may reduce the chance of the colony starving, but, on the other hand, there is the risk that the brood box may not be sufficiently emptied for Spring's population explosion - and the common consequence is swarming.
You have to steer a middle path - providing an excessively comfortable stock of winter stores can be as bad beekeeping as running them short!
How much stores do you have in the hive right now?