well its worth it for me cuz i run exploits. One hdd is completely stock and the other one is modified with font exploits. When I want to play my back ups, i select one hard drive and when i want to go on XBL, I select the other. Also the hdd with font exploit has the IP settings all screwed up so that it can not sign on to xbl and ban me. so it was worth it for me.
A lot of people seemed to have the same problem as us. Some went with trios and some just game up. Others had no problem at all.. I tried to figure out the differences between the ppl who had problems and the ones who didnt, but I could not get enough responses to come to a conclusion. Also afte the 137gb barrier was broken, not too many ppl were really interested in running a hdd switch anymore. So you will find very few people who are concerned about it.
--PooN