Actually, I rather like the fact that PL100 goes nuclear in pyro. A nice, dense, full scale negative can be had in about six minutes for an N scene, with very little fog. I have no problem with streaking or uneven development. If, however, any contraction at all is required, I use the 2:1:1:15 dilution. The regular dilution wouldn't even give me enough time to inspect or to react.