I am having trouble finding pants that fit a slimmer waist but are roomy in the hips and thighs. I like a relaxed fit in the hips and thighs but most off the rack pants that do have a relaxed fit in the hips/thighs will be huge in the waist. I thought about going to the tailor to take in the waist, but I also workout and do bulk/cut cycles where my waistline might fluctuate an inch or two during bulk season. So I don't want to tailor something that fits but will be too tight when I gain weight. Also, I heard that taking in the waist the traditional way shouldn't be done more than 2-3 inches or so, whereas I'm looking to take off around 4-5 inches.
This has led me to the thought of adding an elastic waistband and/or drawstring to pants like my jeans and chinos. The idea is that I can tighten accordingly in the waist without taking away fabric from the hip/thigh area. I'm wondering if anyone has done this before. I'm not too picky about looks, but I would like some second thoughts here.