Hung and flooded out engines are almost always caused by a lack of understanding of how the engines themselves function at the drawing board level. That, and especially a lack of understanding of the electrical system.
We all forget checks from time to time, we're only human simmers hehe.
If you want to never be confused as to why something isn't starting up, pressure isn't building, fuel isn't flowing, the rpm's won't climb...... Master Caution goes off just shortly before an engine detonates from overheating -- be able to draw a flowchart of the electrical system busses and junction points with it tied onto the engines feed and how it all fits together. I figure if you go for something like the A-10C, you should give 110%, because although it is missing several classified features, it's nothing that truly affects your ability to say you could start up an A-10C and not kill the crew chief! Once you learned hand signals and your outboard checks anyway, lol.
@OP and Capt if you'd like I'll make a detailed video on the theory and principles of the startup sequence and why things are done in particular orders. I'd have to check with some specific people first before I publicly posted it, but I'm fairly certain I can give you decent insight. :)