Lostinseattle: the cable lending library from the Cable Co. is available to anyone in United States. They are located in Philadelphia, but they can certainly ship to Seattle. Other ways to try some cables with no or little risk: borrow / exchange from local friends, local dealers that are willing to lend you cables to try (it may require existing business relationships with that dealer). Or buy used from here at discount prices, so that if not liked can be sold with little loss.
Glupson: thank you for your service
Glupson: thank you for your service