Sarah, if she is too low to shoot at night, then you need to reduce the dose a bit. You want to give two shots a day. If you don't and consistently skip, she will be going up from pmps on and be high by amps. Then she gets a little too much insulin for amps and it lasts longer than normal and gives you a pmps you are not comfortable shooting. Consistently skipping the pm dose is not going to work with any insulin.
Hope you could get a test tonight. - it looks like she would be high enough to shoot, even if a little less than 1.5. I would be glad to set up a sliding scale but would really like more data. Maybe Thursday will help.I wonder if she went low with the one unit on the 298. She did the cycle before in that same range. That may have meant this cycle was a bouncy one with elevated numbers.
I think you have two issues - giving a little too much insulin (the move from one unit to 1.5 was likely too much of a jump) causing bouncing, and skipping doses. If you could post daily with your numbers and let us try to interpret them, we might be able to get her on a even keel.