The head wobble varies from snake to snake,some may have it bad,others you may hardly notice it. It is also carried over to Spider combo's like the Bumblebee,Lesser Bee,Killer Bee etc. I have never seen a snake affected by it so bad, that it couldn't fully function..
My Spiders have it too,still they eat like machines.. and that's the other thing you will notice about the Spider Family, their ferocious appetites and their outgoing personality..
So there is really no difference in needs to a snake with a bit of a wobble, than to a snake with none.
Hope that sums it up for you?