B.H.
Hi H.,
I am a new mom to a 5 month old little girl and still use my sling. I am a DD to E or more as well. I went to Baby Grand in St. Paul and the workers there know all about the different types of slings and have them all for you to try in the store. If you can go, bring your baby so you can try him in it. I ended up purchasing a New Native Sling (similar to a Hotsling but better sizing). It is a one piece sling (size M if you can believe that) but because I was able to try it at the store, I could get the right size right off the bat. I actually went there looking for a peanut shell but the sizing did not work for me. I had even considered trying them on at Baby Grand and then doing a search on-line for the best price.
Now that my daughter is 5 months old, she rides on my hip in the sling. She loves and I think it is great too. I hope you find one that works. Get one soon, you won't regret it!