I don't see why you need to protect this position at all. The IC is in and of it's self a a tool for minimizing risk. You are taking on that risk of $1,000 and you need to be prepared to take that risk. If that risk is too high, I would scale back the size of your condor. In the event of this kind of drop, if it is sustained, it will be an acceptable lump on the head. If you like the risk reward for the condor, the two wings already serve that function.
If you were to attempt to hedge this position by using the vix, I would definitely stick to the front month vix as this this option is the most highly correlated to the spot vix price. Stay away from any type of calendar in the vix because each month essentially has it's own underlying with varying correlations to the spot vix (I learned this the hard way). I would perhaps to try finance an upside call with the sale of a downside put. The vix may 'rip' up, but I have never seen 'rip' down-- hence you can mange the put with some ease. Or, better yet, ratio your vix calls, sell the say, 30 calls, and buy 2 of the 35's.. something to that effect. that way, it cost you very little or nothing to hold the spread and, in the event of a huge drop, if the vix breaks 40 you should be sitting pretty long a lot of deltas.
If you were to attempt to hedge this position by using the vix, I would definitely stick to the front month vix as this this option is the most highly correlated to the spot vix price. Stay away from any type of calendar in the vix because each month essentially has it's own underlying with varying correlations to the spot vix (I learned this the hard way). I would perhaps to try finance an upside call with the sale of a downside put. The vix may 'rip' up, but I have never seen 'rip' down-- hence you can mange the put with some ease. Or, better yet, ratio your vix calls, sell the say, 30 calls, and buy 2 of the 35's.. something to that effect. that way, it cost you very little or nothing to hold the spread and, in the event of a huge drop, if the vix breaks 40 you should be sitting pretty long a lot of deltas.