Advance spring

I think what the OP is asking is if there are any spring "kits" that anyone recommends. I have a stock dizzy as well that I feel is too sluggish which would make sense because it came out of a motorhome. Similar to what the OP said, I got a 2nd dizzy I had lying around and took out the heavy spring with long loop and put in 2 light springs and swapped it back out after about 2 miles of driving because it felt like it would just flop to full advance at any rpm above idle. I tried looking around and I was recommended NOS springs because everything else is crap nowadays but I can't bring myself to paying ebay prices for just a couple springs and still not be sure if they will be any better. I figured a "slow" curve is better than too "fast" of a curve so I'm back to where I started. If I hear of a good kit with multiple springs of good quality then I might... spring for that deal.
Personally, I am really trying to avoid having to go with an aftermarket distributor for the sole purpose of being able to find tuning parts for it.