I'm using Humulin S these days because it works better on a lower carbohydrate diet, for me at least. Just as you said, I also found Humalog worked too quickly for the slower release of glucose from meals devoid of starchy carbs, so I now use it only for breakfast and lunch, with Humulin at dinner.
The Humulin seems to have a longer, flatter profile, with the only real downside being that it takes a bit longer to start acting.
I haven't had any problems with it at all. In fact I think I get slightly stronger hypo symptoms compared to Humalog.
Good luck with it!
fergus