the starter strip helps guide the bees to build the comb with the bar as opposed to across the bars. the best guide around is already drawn straight comb. that means that after the bees have drawn a few combs you can start putting blank bars inbetween the drawn combs. if youre hiving a package i would use guides on half the bars at the front were id put the queen cage and leave the back bars blank to be inserted between combs. if hiving a swarm i would use all guides unless i was giving them a comb of brood. in my experiance theres no telling were a swarm will start drawing comb.
all that is gold does not glitter