Welcome! Hope you are feeling better soon. I think you should paste your back story into your first post on this thread. I went and found it in your other thread, but others might not bother and I think it is important info regarding your build.
I haven't done any tuning on my 6.2 but tuned and data logged on both my 300ZX TwinTurbo and my Hayabusa. I am tinkerer and if you do your homework, you can tune safely and productively.
My bike was putting down 186 at the rear wheel when I got it where I wanted it an pulled like a freight train from the very bottom... and just kept pulling harder to the red line. Canned tunes are fine and usually safe but in order to get the most out of it, logging actual data and/or making pulls on the dyno. For me, a combination of the two worked best. Damn I miss that bike.