Absolutely reccommend https://pecs-unitedkingdom.com/?gclid=CjwKCAiAjs2bBhACEiwALTBWZaiIcrJcFbQH4yHnssmPQHCZqsxDWbIGLFbjUV9d01GVr7FlLDaZ5xoCZaAQAvD_BwE
It involves a 2-day process and remains one of my best training experiences throughout my whole career.