I would train him more like a PF, maybe you could make him a PF who could play SF from time to time like my "Star" Dachsbau.
The dude who made the main work for training, start playing again, maybe you could ask him for advice directly especially about the OD training which is the key if he could make the SF spot. I send you a ingame mail with his team link, so if you like you could ask him and maybe also link to this topic(and maybe we all profitate from his experience then).