I am having a lot of issues when starting the JS4100 engines. First, I turn everything off, to make it cold and dark. After that, I turn the batteries on, connect the GPU, do my preflight cheks and before I start the engines I make sure the props are unfeathered. I then proceed with engine n°2 and then with engine n°1. Although I made sure the props are unfeathered, somehow when I remember to double check, I notice both or just one of them is still in a feather position, and that is issue n°1. Which means, if I forget to double check, I have an engine fire upon starting up. Another issue I am having is when I remove the start locks: sometimes, I have to pull back on the power levers more than once to remove the start locks, and while doing it, the engines catch fire, not pretty...I really like this plane, and I would be grateful if someone could help me out, I have a feeling I am doing something wrong, but I can't figure out what...Maybe there is a proper way to make the JS4100 cold and dark, and then start the engines without issues...looking forward to any suggestion...