Good point, he is totally correct in saying that but why not move with the times, this is the way PADI should have gone a while back, it will save a hell of a lot of time in the classroom as people forget which side of the table to use. Both forms of the erdp are easy to use and i can see the regular table rdp being extict in a few years. Whilst training the divers of tomorrow why not use the materials of tomorrow.
I for one will be pleased once the RDP is gone as some find it very confusing. This will not happen however until the erdp's are made 100% waterproof.