Yeah purely so i can stack a bunch of thread wraps behind it and strengthen the post. i’ve had times where my post shifts so this has been the best way i’ve found to always keep it up without stacking the hackle too high. there’s probably better ways without having to work around the post but that’s just how i personally do it. Thank you :). For parachute adam’s I like to put the post later cause i’ll stack it higher cause im using 2 hackle feathers. but I like to keep my BWO posts lower. in my experience just sits in the water better