Thanks!! I guess I'm officially a stair-stepping chart-girl this month. Would love to step on up to triphasic, ha!
I don't know about attributing that jump to 1/2 hour, that's not a huge difference in time. For me, that make a difference on maybe 1/10 of a degree but not more than that...I know everyone's different, but just my take. We'll see what ff says in two days...