But after two seasons across the Severn, he will return home to the RaboDiret PRO12 to join brother Aaron at Parc Y Scarlets, and Shingler junior is eager to follow in the footsteps of two-time British Lion Stephen Jones a former star for the Scarlets at 10.
"If I'd stayed in Wales, my realistic aim in these two years would have been to get on the Scarlets bench," said Shingler, in an interview with Rugby World.
"I've come up against great players and I couldn't have done that if I hadn't moved.
"It was a good playing decision and I've got a lot of experience playing in one of the hardest leagues in the world.
"I wanted to get out of that bracket of being considered a development player and gain some respect and I feel I've done that.
"I was a first-choice starter (for Irish) in the centre from early on. I'd love to be playing ten, but if I'm on the pitch I'm happy.
"I want to play week in, week out for the Scarlets and I'd love to kick the goals, as I believe that is one of the strongest parts of my game.
"My dream was always to play ten for them, like Stephen Jones. The opportunity to go there (to the Scarlets) arose; if I didn't give it a crack I'd regret it."
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