^^^ that's good advice to do this at home, not while running errands. Also to have someone around when you first start.
I think its good to have the Slin discussions on here for people's safety. It's not for everyone. I tried it about 13 yrs ago and decided that it wasn't for me.
I tried Humulin R for about a week. I really can't remember how many IU's, but it was definitely in the lower range. I had friends who were safely using it post workout and there was also some info going around the boards at that time so I thought Id give it a try.
I would take it post workout while alone at my house, which as mentioned above could be dangerous. I would have my dextrose, creatine, protein/mrp shake, and post workout meals all lined up. I pretty much had each of these scheduled to the minute.
But even with all the planning and research (which seemed thorough at the time, but I'm sure there's been some evolution) I still didn't handle it well. I'm the sort of guy that is usually somewhat dull to the senses. I'm just not very sensitive. Stimulants, sleeping/drowsy meds, test boosters, etc. do very little that I can actually feel. But I could definitely feel the insulin. In fact it was almost like I could feel it coming in and moving over me and I didn't like that. Perhaps, because I was already very cautious and aware of the dangers of insulin (lived with a reckless diabetic).
I would get drowsy at a low dose. Even after lowering the dose below the recommended range, I still felt drowsy. And that was more than I cared to deal with. The thought of falling asleep while the Humulin was still active scared the shit out of me (as it should).
I lived with a diabetic at the time so I had a test meter and was checking my blood sugar during all of this as well. But as I mentioned, I was doing this while I was alone in the house which was stupid.
I adjusted the rate of insulin and my post workout program during that week to try to find a balance, but I never did.
This doesn't mean that others can't safely use insulin. I'm aware that many use it safely and effectively for BB. Just proceed with caution.