Look at the colour pic Vic posted in Woody's build thread - Post#150, Page 10. It clearly shows the star and bar under the port wing of this 56th FG aircraft.
EDIT:- Apologies !! I've only just realised - this is the 'M' variant !
It appears that, from this version on, the star and bar was NOT on the underside of the port wing!
I'm presuming this was due to the period, late in the war, when the P-47 was more familiar, and with allied air superiority, the FW-190 seen less, and maybe also the change in wing plan form.
I'm extremely sorry I hadn't realised the variant Andy, this darned head cold is really affecting me, and I'm confusing your model with Woody's. I really hope you can rectify this without problem.