1. Yeah, I see what you mean about the percussion. I will try to fix it. 
2. I hate to say it, but the guitar's as good as it's going to get unfortunately. I use midi and convert it. I have tried FL studio, but it is a bit hard.  
3. Yeah, I am WELL aware of the end... that has some work to be done to it. 
4. It has some work to be done on it... for sure. 
Thanks for reviewing.