PIP from injectable L-Carn is bad! It goes in painlessly, gym will be good, but later in the day it will definitely be a bother for some time.
The main thing you’ll notice if injected preWO is better pumps, endurance, and you’ll be sweatier. I will be wondering why I’m so sweaty, chugging along, then remember the shot.
But a lot of the other benefits are more background things, like making your androgens work ‘better’ (l-carn makes the AR unbinds faster, so whatever natural testosterone OR artificial steroids in the system get free sooner to bind again more before eventual elimination). This is a good reason to use it all the time, and the doses allegedly are much lower to achieve that.
Even if it doesn’t end up delivering the same acute performance enhancement preWO, it could be useful for application on off-days to cut down on pins for someone who does. If I’m not training, I generally don’t take it, even when I’m taking it. Not worth the PIP usually.