I just finished my first insulin cycle yesterday. I took humalin-r on workout days. Either 4 or 5 days a week depending on my schedule. At first I just took it pwo and then morning and pwo. I worked my way up to 15iu 2x per day (4x per week). I took a high dose of test, peptides, and t3 for the final few weeks. I gained quality size and I'm pleased with how things went.