Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
First of all, let me apologize again for any mix-ups. I did that trade as I was preparing for a long car ride, so I rushed it and didn't read your reply in time. If you want the Shellos w/ Assault Vest back, I understand.
The only substantial spitbacks I have are Timburr, Mawile, Litwick, and Kangaskhan. Hopefully we can work out something.
I pretty much skipped Gen. 5 competitive stuff, but I got sucked back in this gen. It's been a long time, but it's good to be back. Hopefully we can stay in contact.
I must be having terrible luck with the Destiny Knot. I spent over an hour yesterday breeding HA Dratinis, and the parents were 31/x/31/31/31/31 and 31/31/31/x/31/31. Regardless, it's still a VERY nice feature and more convenient than RNG.