I like the way mine is set up since I don't want to damage or blow it. Not saying it won't anyway. It is about a the safest way for me to spray it.
Set up a fuel cell and run race gas in it for spray. It will help with detonation. I use 116. When it was tuned there was NO noise. But like i said I drop 8 degrees also. I would put it on there or have the valet rigged up and see. If you don't like it take it out or sell it. Have you pulled your plugs and looked at them and what ones are you running?
I have a MSD window switch with 3000 on and 6800 off pills. It is for in case you over rev and to keep it from coming on to low. Just a little safety to make you feel better really. Some people I know that have used spray for a while don't want or need it.