Fitment Question Source low profile 3L in Kuiu pro 550LT lid

[Govinator3]

Hi, I was wondering if anyone out there has tried using a source low profile 3L bladder in their kuiu 5500LT lid? When I measure my lid base I get about 12" by 11". The source specs say 13.4" by 10.6". I'm thinking it will fit and the lid fabric will just bulge out to accommodate the extra length of the bladder but I was wondering if anyone has used this combo before.

Thanks