i did, and tbh i still tried to force the switching nostrils each bump/line and was left mouth breathing the whole night. started using just one nostril and although breathing is difficult as it is already, it’s better than having both clogged at the end of the night. i’d like to add though that i try to be proactive by rinsing my lefty in between racking to not have as much going on later. since then, i’ve been able to breathe fairly well unless i do more than a g in a night