I came back to change my spelling and put the k in Dektol but it was too late to edit.
10%-20%? Pull the other leg, it's got bells on. Maybe 20% greater capacity if one mixes it up and prints straight through to exhaustion, something I have never, ever managed to do in 30+ years of on again off again darkroom work. But tray life of the working solution? I'd say that is dramatically better.
Plus I like the lack of staining (I DO get black deposits - maybe not "stains" as they do wipe off with water, but they're a mess anyway - with Dektol) and I like the tonality I get slightly better. LPD costs more but lasts, in my experience, dramatically longer. I'm staying with LPD, at least for non-warm-tones on neutral papers.