For long shelf life LPD powder is the one to buy. My guess is 130 would be a longer lasting developer in a Nova unit but could stain prints eventually. Unlike Dektol, LPD does NOT leave ugly black deposits on the bottom of trays and contains no Metol. The developer tonal shifts are minor. No miracles, can't make a warm paper cold. Does a good job producing mushroom silver tones on Ilford WT or EMAKS

LPD has a longer shelf life, lasts longer in the tray, and has a higher print capacity than Dektol. However, we are talking maybe 10% to 20% higher capacity and shelf life. No miracles.