Anyone here ever have their pistons machined?

I have not made up my mind on anything yet. I like to know what options are available.
For the record:
What do you think I've been doing? I have asked numerous times about the ignition curve and the most helpful suggestions have been...you need to delay full advance until 3500.....
Great. Now how in the world am I to do that? Stiffer springs? NOBODY has stepped up to suggest what springs, where to get them or anything else on that matter. I am dealing with an engine that knocks at anything over 25 degrees of total timing. It USED to detonate at 31 with the old cam, NOW it knocks long before that. I mentioned in the other thread that the Lunati cam swap resulted in worse detonation than I had with the 509 cam. This was with 91 octane.
It may be annoying for you to read all these threads on the same problem. Despite some members opinions, I am not waiting around for people to approve my own ideas or what I have already decided. I'm not co-dependant to the point where I need validation of what I do. I ask when I truly do not know.
Okay man, here ya go. What distributor are you running? I'll get you the delay you need. I just dont have that info.