I agree that many schools won't want to pay UPS3. There are some out there who would for the right teacher. We have looked (largely unsuccessfully) to recruit UPS staff in the past for two reasons - to rebalance a little after employing a lot of NQTs, and when we had a situation with a teacher on capability leaving mid-year and wanted an experienced teacher to pull the class back. Schools in OFSTED categories may also need 'proven' staff. Don't give up, perhaps target your application a little and focus on Christmas/Easter jobs?