Re: Looking for Recs for a SSC larger than the Ergo
I would think that carrying your 2 yr old on your front would be adding (possibly causing?) your back problems. I would definitely consider doing that rarely if at all at this point.
As for a carrier, I haven't used one in several years, so I'm not sure what's out there. However, my sister and her husband do a lot of backpacking/hiking. You might look into a carrier for that for your husband. They would probably have a much broader size range than most carriers that are listed on parenting sites.