idk... month after month I'm writing more credits than debits in the aggregate, to the tune of 6-8% of my capital per month. I haven't had the energy to record and follow every entry to its conclusion (some 60 trades each month), as my friend suggested to me, that is until this month. So we'll see, as all the recorded trades expire by the end of September. My seat of the pants conclusion is: a few substantial winners, many marginal winners and an occasional downright loser.
I tend to roll the tested side for a debit, roll the untested side for a small credit, to re-center the trade and then try to hold the trade as long as possible to take advantage of theta.
For sure I could do better, which is why I started this thread. But I'm not ready to abandon the strategy for some unnamed better strategy.
I'm always working on new ideas: most recently selling ITM call spreads for a down market.
Meanwhile thanks again for your substantial input.