Perfecting the Slack with Fit For Art Pants Pattern

That's my current goal, to perfect a slacks style pattern for everyday pants (which I do wear every day.)

I'm using the pattern from Fit for Art and have also signed up for the pants fitting class on Pattern Review with Sarah Veblen.

I started with my first muslin and picked wrong.  I used a size Medium with a back 1.  There are 3 backs per size, 1 is for flat buttucks, 2 is round, and 3 is more rounded.  You pick based on hips sizes and what you think/know your backside is shaped like.  Considering I always have fabric under the butt I assumed that meant flat, which is does for the most part, but not based on my size.

My hips and abdomen (not waist) both measured 42" at the time I measure.  

The first muslin was too, tight, so I went up to the back 2, and I still didn't have enough crotch depth. I drew out the back 3 for the medium and just looking at it knew it would be too big.

That's when I decided to sign up for the online class and watch all the videos.  I started to think maybe I needed the back 3 but for the size Small.

I posted my "hello" post on the class board and Sarah popped in immediately and suggested the Small pattern with the back 3.

This afternoon I drew that one out, added extra fabric for my waist area and went to work.  Below are my muslin shots (taken with a cell phone and two mirrors.)

I'm happy with the fit and this weekend hope to sew my first pair of pants which will basically be a wearable muslin to see how they fit.  Then it's just adjust as needed and keep perfecting the pattern.