I think in the area of the wrinkles....The added foam on each side needs to be rounded in each inner corner to match the cover. Also, the seam on the front bolster on each side the foam may need a relief cut....

That way when the cover goes on the foam doesn't bunch up.....

Legendary's service simply sucks....I ran into the wrinkling issue on my GTX and it dealt with the side bolsters and the added foam on top of new moulded foam. With a lot of trimming and repeat fitting they finally worked out....