1)have you considered substitute on your latias? it will give you a cushion against status and sucker punchers that may try to ruin your fun. latias should have no problem setting it up with base 110 spe. calm mind will make your subs extremly hard for special attackers to break.
2) i support putting fire blast on your T-tar to hit scizor and ferrothorn. if it works for you, use it
16:46 <TLCNU> Esca literally is 2HKO'd by Stoutland Fire Fang
10:33 skylight molk put me in your sig