Live Trade Today in SPX- Ratio Call Fly

(The below trade was put on earlier today in a webinar with ally invest.)

B 1 Oct 17 2930 C, S 3 Oct 17 2940 C, B 1 Oct 17 2950 C, 1.80 Credit, Risk or Margin $820. Max $180 credit on downside or 21% on Capital. Plan on downside would be to buy back the spread at 1.20 debit and make around 7%. If the SPX goes up to 2905, I might look to buy the 2930-2940 Call spread in the Oct 17 Expiration , to reduce my short Deltas.