I find myself in Gideon's predicament a lot lately. God will call me to do things that are down right terrifying and so much bigger than me . The shear size of the task requires so much more than I have to give so before I engage, I want God to give me a sign that He is going to so up on my behalf. I have yet to use the "fleece and dew" test but I do test His word in other ways.
I long for the day when my walk with God produces such a faith that the size of the task becomes irrelevant and the testing ceases.