Tripple IO questions
 

If you have a boat with tripple IO's and you want a fast cruise but not a rocket can you raise the center drive and run on the two outboard engines/drives? Conversely if you are in a slow running zone can you raise the outboard drives and run on the center? Just wondering.

No, it will pull the two outside drives in.

...making the props to touch the center drive, breaking the drive case, the props, and making you spend... maybe 20k in drive and props repairs...

just wanted to finish tomtbone1993 sentence ! LOL !!!

not all boats have tie bars on the outside...

If it doesn't have tie bars it's possible, but will run like crap. As far as slow speed, yeah, no problem, but you don't have to lift the drives, there isn't much drag going slow anyway. I kill one of my engines at times during long idle zones just to quiet things down