OK, I have been stand developing my film in Rodinal 100:1 with good results. Only the last couple of roll scame out over developed. I think over developed, because I developed a second roll in the same tank that was taken with a different camera months back. I figure it is unlikely that both cameras are over exposing by a stop or so. My technique is to pour in the developer, invert slowly five times, and then go away for an hour. The only change is that temperature higher than it was in the winter. However, my understanding is that true stand developing automatically compensates for temperature changes. The warmer solution develops faster, but the developing agent in the emulsion gets used up faster, balancing that out. 120 Arista.EDU Ultra 100, by the way. Over the winter my solutions temps were about 65F, and for these last rolls they were about 75F. I use all solutions at room temperature. OK, something is not right, but I am not sure what. I guess both my meters may be off, but by the same amount?