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I'm just now getting a chance to look thru all of the posts for this May HATCH-A-LONG, now that April is over.  
Is a "thermal-air" forced/fan air?  If so, then I would do temps around 99.5 F or 101 F for no fan.  
When I turn eggs, there is an "X" (or date) on one side near the top & an "0" on the other side near the top (top being the wide end).  So, I turn all the way around to the opposite side; this would be the same as lifting one side & then the other.  I have not heard of lifting 4 sides, but maybe someone else has & will comment.
Starting incubation at lower temps will probably not be a problem for those few hours.  When you candle at Day 7 or 10, that will answer your question & be a relief.  I usually get my incubator going a couple of days ahead of time to stablize the temp & humidity.   When the eggs go in, the temp & humidity have to be watched for about 1/2 a day or so; I also watch closely when I do "lockdown" when the humidity is raised.  Temps & humidity affect each other. 
Happy hatching!
Thanks for the responses!  I candled last night and 29/42 are alive and seem to be doing ok... a few are questionable, but many are actively swimming around.  I can't wait until the next candling day!