My understanding is the data drops are caused by android 4.4.2. I recently installed slim kat v21 which is android 4.4.4 and I haven't had any data drop out going on two days now. My GF's HTC one also had data drops and since I installed a rom with android 4.4.3 she hasn't experienced the drop out going on two days now. I would recommend staying on NF1 and installing a rom that is 4.4.3 or higher.
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