New Giordana FR Carbon Shorts???

I purchased a size M. Not sure if I should have gotten a size S. I'm 5'3", 25.5" waist, 36.5" hip, 21" thigh circumference. I usually wear a small, but ordered a size up after reading the reviews.

I wore them last night for a 17 mile ride. Felt fine. However, the front waist panel rolled down a little. I didn't notice it until I got home and undressed. The back, side seam looks a little puckered when standing, but flattens when I bend over. The leg openings doesn't make my legs look like sausages. But, it doesn't move with me. I find that I have to pull the leg openings down often.

I'd like to order another pair. Would a smaller size be too small?

Also, I hate where the tags are located, almost on the tailbone. Has anyone removed the tags without it affecting the stitching/fabric?