We have the Baby Bjorn Active and have loved it up until now. But now it is starting to kill our backs. I think that we are interested in a carrier that can be used as a back carrier since baby is getting older and bigger. I would like something that both DH and I could use. I am med. size (5' 6" , 135 lbs.), he is tall (6' 3", 230 lbs). Baby is probably around 25-26 lbs and average height. From research on this board, I think either the Pikkolo or the Ergo will be the carrier for us. Please weigh in with advice!