Jr Guards review for Bundles.app ‑ Inventory Sync

I want the customer to be able to choose the size of the variants not me. I was unable to let the customer choose the swimfin size and then the bodyboard size and then the swimsuit size. You have to choose the sizing for the customer so you could end up with a many many bundles for every size of all the products in the bundle. I know this app doesn't create the bundles but that is a limitation of Shopify.