I tried it properly for the first time last year. Did a lot of research beforehand so I suggest you do the same. I only used it post workout and started at 5iu. Taken properly with clean eating, it definitely helps with fullness and recovery. Just don’t expect it to work like conventional gear..it’s a lot more subtle.
I stuck to around 10g of fast carbs per 1iu, so 50g with 5iu and always had sugar on hand like glucose tabs or a sugary drink. Timing is everything. So as soon as you pin, you need carbs ready to go. I slipped once, waited too long and ended up drenched in sweat, shaky and dizzy. It came good quick once I got sugar in, but nothing to muck around with.
Worked up to 8iu post workout max. Never used it pre workout, I think it's too risky unless you’re advanced and running intra-carbs properly. I also stayed away from long acting insulin.. just too many variables and not needed unless you’re trying to manipulate blood sugar 24/7.
Biggest advice? It’s not something to play with unless you’ve done your research and are tracking blood glucose. You need to know how your body responds. Keep it simple and get your food and timing right and only bump the dose if you’ve locked in the basics.
Would I use it again? Maybe during a serious bulk when food is maxed out and chasing size. Otherwise, not worth the risk unless everything else is already on point.