The more food the larva is floating in/on, the easier the grafting will be. If you setup a starter and put the frame to be grafted from in there for a few hours before grafting, you will have an easier time grafting and have better success.Yes indeed but for me there will be no more starter started until I'm sure I can do the grafting. Hopefully today I can do some exercises as the weather turned into a fine one.
If you don't want to devote a lot of resources towards a starter, set up one of your hives as in the 'cloake board method'....queen, capped brood, empty comb below an excluder, open brood and eggs above. Keep maniupulating the colony to be like this once a week or so, and when you want a starter, just lift up the top box, put a board over the excluder and put the top box back down (or use a cloake board to do this without lifting the box).