Option gives better R/R when delta is around 50.
If one is correct in determining the direction and magnitude of move than shorter duration give best returns on the dollar, but most traders are not.
Stock market movement is also influence by options expiration and I think for day or two market could be manipulated and they do so, it is out of smaller investors hand so no need to focus on it.
That movement some times gives lotto options, usually in last week of monthly expiration week, just my observation.
It leaves us with for 4 to six week options. So I did improve my results when I took advantage of your one observation sell those between 70 to 80 % of spread (value) is reached as this still gives you some time premium back and it also saved me from last week fluctuations.
It is okay for learning to trade one or two options or if portfolio value is very small other wise not worth because of time required. Index option near monthly expiry are manipulated the most.
Four hour charts works better for option trading if one is trading for few weeks, 5 to 15 minutes are best for day traders.
These are my observation, option trading is still an art.
Always thankful for members of the forum for sharing there wisdom.
Farooq