The most common weapon switch used by a hybrid is on a bowazon hybrid, which uses Faith as one weapon and Eth Titans/ Stormshield on the other. Some paladin builds make their CTA in a scepter with +FoH and +Conviction, or alternatively other useful skills (the FoH one is the most common).
Hybrid sins generally just use claws, with CTA on switch. Good claws will give a higher bonus to trap damage than Hoto/Spirit anyway.