yeah, throwing out the super low temps definitely makes it a little better. I sometimes get super low temps when I don't put the thermometer under the tongue right (it should be always in the same place, in a heat pocked in the back and to the side of the tonque, and always use the same pocket)
Yesterday I temped after taking a sip of water and got a temp that was a degree lower than normal. I also get super high temps sometimes if I was waking up a lot. So, temp more and then some of the outliers would be more obvious. Also, track all your other fertility signs (mucus, CP, etc) and the temps would make more sense. I definitely supplement the temps with CM, CP and ferning tests. Then I can tell when I O even without FF guessing it right. Good luck!