I agree with John1982. I used to incubate at 89 to 90 and found that while my babies hatched around day 54, many of them had poor feeding responses. I had to assist feed as many as half of the clutch before they eventually ate on their own. I dropped my temps down to 87 and while the hatch date was protracted at between day 62 and 64, I haven't had to assist feed a single animal since. Now I realize I have a small sample size but my experience is such that I will not go back to higher temps. Best of luck whatever you decide.