Check out my tutorial on wearing a toddler and a preschooler using an onbuhimo and a base minus 1 woven wrap! The children are in their own carriers so each can be taken out individually if needed. The lack of a waist belt from the onbuhimo gives me more freedom and I don't feel like I have so much on me. It's less hot too. The short cross carry with a ring is pre-tied and can be easily adjusted; plus there's no bulky knot anywhere. We don't tandem wear often but some times both children need the same person at the same time, and it's nice to have options!