Beleña JM, Núñez M, Vidal A, Gasco C, Alcojor A, Lee P, Pérez JL. Anaesthesist. 2015 Apr;64(4):271-6
140 patients split into two groups: i-gel and LMA Supreme, with insertion time, success rate and leak pressure among the results measured. i-gel was quicker to insert but deemed not as easy. No differences were found in leak pressure.
Link to abstract