Maybe fast-TM the Eggy to bullet seed, and put it earlier in the lineup. TS/T on the Jolteon is not a very high DPS moveset, so you may want to consider TM'ing one or both of those moves, if you have nothing better you can sub in. Or, at least put it after the Dragonite. I'd put the Zapdos first, as you are more likely to get an extra zap cannon in if it is in the first slot (or second, after the BS/SoB Eggy that you will have after fast-TM'ing it). The Lugia is not particularly useful against Vaporeon.
edit: Just saw your p.s. about the other Jolteon. That one would certainly be better than the TS/T one, assuming same level & IV's. Another SoB Eggy, especially with bullet seed, would also be helpful.