sounds ok, just watch for curve flip as imo oct short and jan short will outpace dec long by a long shot in a vol rise. still a very directional trade. also long a oct dec trade "elsewhere" is already .10 under , so be careful. you are short oct in 2 different trade set ups.
Great speculative play!!! I saw this and put the same fly on using NOV instead of OCT. I only did it 15 by 30 by 15 or so. Liquidity is poor in those back month futures, a large position can easily get too cumbersome to trade out of.
I also traded 22k vix contracts today...this little future fly won't even make a dent in my option portfolio's p/l, more of a test trade with real money.