I recently had a stress fracture in the second metatarsal in my foot and I will be returning soon. I need to know what the SOFTEST running shoe is. Forget responsiveness and weight. Forget brand popularity. Forget price. I just need a shoe that will help me come back to running slowly by giving me the absolute MOST cushioning that is available without having to use any insoles. I want to have my foot basically running on clouds when I return. Suggestions please. Thank you.