HM Aeron chair for heftier build

I'm hoping to get some info on sizing for the Herman Miller Aerons.. I'm 5'7", 220lbs, and in my mid 40s. I'm built with a fairly long torso and shorter, but more muscular legs, which seems to be the opposite of what a lot of ergo chairs are built for. I've had mild, but consistent back pain for the last 10-15 years, primarily from being a programmer and sitting at a desk with cheap chairs and not the best posture for about 25 of the last 30 years.. My current chair (Office Max mesh back with a padded seat and headrest) was decent at the beginning, but the seat padding is basically gone and the last week or so, anytime I sit in it for longer than about an hour, my lower back pain is significantly worse for the rest of the day, so it's time to replace it. I've seen other reddit threads ([this reddit thread, for example]( https://www.reddit.com/r/hermanmiller/comments/j4y3tl/proper\_herman\_miller\_aeron\_sizing\_chart\_corrected/ ) that seem to indicate that the person won't help me with my height/weight and will make my lower back/thigh pain worse.. Is there anyone with a similar build to me that currently has or has had an Aeron that can give feedback as to whether it has actually helped with back pain or made it worse? Or, if anyone with a similar build to me has any suggestions on other chairs that have been good for them, I'd love that info. My budget tops out at about 600-650, and I don't have a problem with used/refurbished if it comes from a decent place with a reliable warranty or 30-90 day return policy. My back thanks you in advance! (In case it matters, this will probably be cross posted in a few other subs.. hopefully that's not an issue, as I need all the help I can get with this back pain at this point. submitted by /u/melophat [link] [留言]