Had some mix results on tap blocks for lap cholecystectomy and hernia surgeries While visualization of structures is not a problem, where exactly is the correct place of the needle for dissection? Do you want your needle to go through the fascia layer between IO and trans abdominal muscle, depositing local ontop of the trans abdominal muscle? Is the needle to be positioned in the fascia? Should the patient have a numbness to the skin like other blocks? Do the anterior sensory nerves lye ontop of the muscle belly or within the fibers connective aponeurosis?