What is the best tape you recommend to attach the M104?

It depends on how long you plan on keeping the unit on. Please note that adhesives should only go on the poly perimeter and NOT the mono top area.For the poly perimeter:Daily wear - Super 1522, Super Red Liner TapeWeekly wear - German Brown Tape, Super Blue Tape, Duo Tac TapeMonthly wear - No Shine Tape, Super Tape, Ultra Hold, ExtendabondFor the lace front:Daily wear - No Shine (3 day hold)Weekly wear - Super Blue Tape, Duo Tac TapeMonthly wear - Super Tape, Ultra Hold, Extendabond