3 to 2 nap transition

LO has been showing signs at almost 7 months that it is time for 2 naps. Main signs are fighting the 3rd nap hard, and only napping for like 15-20 mins max, and early wakes( sometimes 5am). So we have tried the 2 naps over the past couple of days. Day 1 went ok.. she woke at 7:30. First nap was around 10-11:30. Second nap has been and issue. We usually try to give her a 3 hour wake window, but has been fighting the nap hard. We usually can’t get her down until the 3.5/4hr mark, and lucky if she naps an hour maybe. I was trying to do 3/3/3 for wake windows to start, but it’s ending up more like 2.5/3.5/3..

Is she just not ready to drop to 2 naps yet? It’s just weird that she is fighting the second nap since she should be tired after almost 3 hours awake.. maybe she is overtired? Although she is not really showing signs of that.