Most of my single leg attacks are to counter a kick. see replay 1. they can be done with or with out a grab. see replay2. to make your single leg tighter you need to know how to turn into/away from your opponent. replay 3 i achieve the turn using pecs shoulders and torso mostly. if i have a left hand grab and i want to turn in to the left. i'll lower my left arm and contract the pec. if you have a right hand grab bend the right elbow and raise your arm while extending the pec. think kind of like the full throw mechanics.

defending a single leg. first priority is denie the grabs. i like to bend at the hips slightly and get an arm grab. then its just a game of keep aways. If the get to my leg it usually means i missed the grabbing arm completely or i've got an ineffective grab so i'll free up that hand to post or strike with. replay4/5
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to take the back i want an inside grab as close to the center line as posible while keeping my other arm back.the closer to the center line the more arm length i have to play around with. Against a shoveler the back take is my go to move.Replay 1. even if i don't take the back fully i can secure a my position with a grab and look to work towards a pin replay2 or throw replay3. liberal use of posting and grab switches will keep you opponent off balance. along with hooks to help stay heavy. replay 4