Conventional wisdom holds that you turn into your opponent, or bridge into him, when he gets sidemount, and work to escape from there. For a good while now I turn away and turtle as soon as he gets sidecontrol, then immediately (or belatedly) roll out to replace guard/half-guard as they are going for my back or trying to control me as I go to turtle. Sometimes I even roll right into triangling them. This has been super high percentage for - it almost always works. This is against blues and purples. My instructor takes my back when I try this, however, but he's a black belt. He tells me not to do this, for obvious reasons. But this approach works way better for me than bridging/turning in. Has anyone tried to develop this escape with good success?