Hiya moonbase,
With the [semi] recent banning of Genesect, your original OU team has lost the sacred glue that holds it together. I have heavily tested the team as it is extremely good in my opinion, and I have found Modest Choice Scarf Thundurus-T to be a good replacement. Just wanted to see what you had replaced Genesect with after his banning and would love to hear from you soon.
Thanks!