Hi Joel
I struggle with this sometimes, I have hit muscle a couple of times even with the 4mm needles, scary!!!!. I run a lot and for the last 6 months now lift heavy, my BF is 13%. I have found that I can't inject in my Stomach at all, no fat. at all in my legs, too much muscle, and I now have to be careful with my upper arms since incorporating weights into my routine. I inject right at the top of both my arms sort of near the inside with Bolus, injecting alone there has created two little cushions of fat, no lumps yet, so insulin is absorbed fine.I know exactly how quickly my insulin works in these spots , quickly! I use my But for bolus if I need a slower absorption rate for long runs.
I use these spots on my upper arms for my fast acting, which averages about 10 injections a day..I low carb, so I am on small regular doses to fit in with training.
I use my Butt for the two injections of Levemir...it's my fatest area really, being a chick :roll: It does get harder to find spots the leaner you get, but the less body fat the more insulin sensitive, so to me it's a no brainer really, I know which I prefer.
Hey and well done on "the Andre abs" just hope your not the same Andre "Brighter shade of Tango" , not a good look on a beef cake :lol: