I've no idea about this stuff. he mixes stuff up; he will use a spoon and make an effort to load it, then eat off it; he will take a loaded spoon and eat, or he'll use his hands.
When should he just be eating with cutlery?
And how can we improve his technique? He finds it hard to shovel the stuff on, and when it is on, he has a habit of twisting the spoon away from him before it reaches his mouth, so it drops .... in frustration he uses his hands.