[Plastics] Help me build some combos!

All right. So I just got a fairly decent haul of parts in, so I have a wide selection to use in customization. I'm mostly looking for really decent or, high tier Defense and Stamina Blades.

My list of Beyblades:
Spare parts:
I've done some testing myself, and I've got five combos already in mind, but I just don't know or feel that they are the best they can be for what parts I do have.

Combos:
It's been quite some time since I have been in the Plastics scene, and I know I'll have a lot more parts (including some Neo-Right SGs, and Left SGs) to tinker around with. Hopefully I can improve my combinations!
Ask in the Plastics Q&A thread.