I like the Gorilla in there game one because this deck hates backrow and he is just another option for Tenki.
I run two Cyber Dragons because if only Kaus in hand (more likely than you think) it allows you to still make a good play. But if I do need to side in the Thunder Kings, the Cyber Dragons are the ones I take out.
I get a lot of questions on the two Horn of the Phantom Beast. It is a LIFE SAVER! With Bear, Kaus, Sheratan, and soon to be Omega being all targets, this card works wonders.
Fiendish Chains over Safe Zones in my opinion (not just because I'm cheap!) because monster effects from mermails, fire fists, and many other decks will destroy this deck. Also, it protects my monsters almost as much.
I like to side the Macro Cosmos build and take out the bear and gorilla plays because Macro Cosmos destroys nearly all meta.
I side an extra MST and Star Cradle because during some duels when I really need it and when I know it will be a long one (for Star Cradle) or they run plenty of backrow (for MST).
Let me know what you think! Advice, questions, and no criticism. If you don't agree with my decisions, make mature comments with what you would do. No hate.