all i can say is if you're having to get your strings and cables re-served twice a year - then you're getting work done by someone who either doesn't know what they're doing, or doesn't have the proper tools to do it - or both.

also, strings aren't made out of what they used to be - well, they are - but its processed very differently. now things areprocessed for no creep and speed, the strands are thinner, and they don't always give the tell tale signs of failure they used to.

i'd never go on a hunting trip w/ strings over a year old, and w/out a replacement set already shot in and in a baggy waiting for an emergency. it just doesn't make sense to do it any other way.
a darn string or cable isn't making me miss my hunting time - i work too hard for it.