I certainly had trouble finding & keeping lift on Thurs, even tho 4 of us waited for CU formation from 10:30am till 12:30. Thought it was forming enuf at 1:45 pm,… nope. But Petr and JL were much more successful! If that good band was starting at 4k msl (3K agl), I failed to grab right away. At the Same time Petr got 1:40 , so he grabbed it, in the right direction! Wonder which direction JL and PF headed out on. My SW direction into wind fell apart, head 180deg back to the NE helped a little.