David, if lead-free became the law of the land, I'd use up the 1000's of Partitions and Accubonds I have first. Then I'd die. Government here in Montana is on the slow side... happily.
Though I'm not kidding about the above, I do understand the seriousness of the question for some. If I lived in CA I'd play around with as many mono's as I could and use the one that shot/expanded best.
In fairness, I could have gotten TTSX's from a bad batch. I can only imagine improvements in mfg are often introduced.
