slant timing with turbo

I like the limiter plate idea. I have one on the electronic distributor in Vixen now and one in the points distributor that came out. Word of caution though. The actual timing you "end up" with is different than what the slots are marked for. On both of mine, the slots did not limit the total timing "as much" as they were marked. I don't know it that was because of it being a slant 6 distributor or not. I don't believe it is, because I've seen others on here with different application also say their plate did not match up with what the slots were marked for. I forget what the "least" advance slot is besides zero, but that's where mine is and it's limited to 10 degrees mechanical advance. So I run "around" 20 initial. But keep in mind, mine is also N/A.
it would take some experimenting. 20 initial seams like a lot (dident slants come with 15btdc "stock") and if the limiter is off marking if i set my initial to 15 and the smallest limiter on the plate is 10 and that is not acuret that would put me over 25?