That is excellent, Harry! I will try this as it sounds like just the ticket to transplanting more seedlings than I destroy.
I have a rather unconventional method of germinating, since I do not have a propogator. (I do have two nice warm beds of sand in the greenhouse that I originally built for germinating seeds, but I have filled them with cacti and succulents, my new addiction, this winter. So I go back to the method I used before I had a greenhouse.)
Again, this is totally unconventional, and yet it works beautifully. I use a regular heating pad, the kind one uses on sore muscles. I keep it on either low or warm, depending on the seeds that I've planted. Just this week I planted some Ricinus communis 'Carmencita' into little peat cubes and placed them in a covered germination tray on the heat pad. 4 days later I must take them out of the tray and pot them up because their roots are already coming out of the peat cubes! I have had similar quick germination times with other seeds, although since these seeds are in the bean family, they come up fast anyway. Still, it has worked for me very well.