I have always used eggs at room temperature for any baking preparation would you still feel it necessary to have at 37?
perhaps the sugar may have needed more mixing. I found that when making a normal pav i would beat egg whites till u could hold bowl upside down and nothing would fall out. When cooking oven temp starts off at whatever temp is recommended and cooked for a while, then temp lowered and cooked for balance of time. left in oven till coolbut whether all that would apply to one with splenda etc in it i don't knowegg to be at room tempsugar added gradually