Jaywings, I think your comment is on following post of mine. (adding here for reference).
http://www.traderji.com/options/305...ng-strategy-option-spreads-24.html#post402050
In my view, you can use NF +/- 25 points, stuff only during mkt hours.
That doesn't mean that u will not be proven wrong on next days mkt open.
Say, you had this strategy yesterday when mkt was at 5000. And last signal in the evening was to go long NF. So your position delta is +0.5 (of short put), +1 of NF, and -0.5 (of Short Call).. i.e. +1.
So if mkt opened down at 4900, your position is already in loss by 100 points.
What is your action now ? If you squareoff the NF, and leave straddle as it is, then you have already lost 100 points of the 250 points of potential profit.
If this happens, couple of time where NF trade goes wrong, u would be running in loss.. cause by that time you accumulated losses on NF trades would have exceeded 250 rs of premium that straddle has given.
I think, it is false impression that the umbrella provided by the premium of short straddle will save u COMPLETELY. In most of the cases, it might.. but there are cases when it will not, and we need to understand that well.. Compare it to the umbrella and rainy season. When it is rain + wind, umbrealla is of no use. But in all other cases, umbrella does serve its purpose.
What I have highlighted here is the same scenario.
This strategy doesn't give u more then anything but being sloppy with NF trades upto 250 points. (as u have also mentioned in bold part of your msg) If monthly profit from strategy is less then 250 points at the end of the month, then your NF trading is having issues. Or if it is more then 250 points, then your NF trading is good and giving u profit. Using option trading's smartness, u can cover your losses upto 250 points but beyond that the you got to face the reality.
My approach of analysis such strategies is to disect them into small parts and try to understand how these pieces behave. It gives very different insight into all complex product of financial engineering.
Again, some additional views from my side.
(apologies for the use of word YOU in this post. It is just to explain the point. I have nothing against you personally so plz don't take personally)
Happy Trading