they actually are better when there's minimal/light stuff in them..they sag when they're heavy...
i dont have any blinkers..so i make an 'x' pattern with the clips provided down to the rear passenger pegs..then 2 velcro straps over the top..
no flapping..works great
cheaper version alternative
Amazon.com: Motogear Motorcycle Saddle Bags: Automotive
this is what i rock...got it for 40$ on amazon lightning deal...not perfect. but i'm budget, so that's what's happening..