Would you mind sharing in % how much your account grew in this first year of trading spreads?
Also, it seems like you are not following @adiggs and @BornToFly methods of using super large spreads. I have found that when rolling I like being able to increase the spread when I get in trouble, and that is difficult to do when you start with a large spread. Is that why you use $50 spreads?
The discussion about spread widths encapsulates most of my own thinking on the topic, and I like to see the rationale from different people. We each have our outcomes and risk and stuff that matters to us.
I use wide spread widths because I know that I'll use roughly all of my available capital to back put spreads (that's me) and the wide spread widths keeps my contract count and leverage down. It's my own artificial restriction that I impose. As an alternative to the $300 wide spreads, do the same # of contracts with a $100 wide spread and leave 2/3rds of the capital uncovered and available to save the position if needed. I prefer to go ahead and have it all in use with a lower cost insurance put - I choose the short put the same way, whether I'd be doing a $50 wide spread or $400 wide spread.
EDIT to add: The other technique I use to keep my put spread contract count down is to restrict the cash available for backing put spreads. I restrict the available cash by buying calls (for covered calls). I'm aiming for a 1:2 cash to value of long calls with a plan to sell those calls as needed to keep my cash level at a target level. That might mean the ratio drops to 1:1 after a max loss, but is a way I use to set cash aside and not use it for put spreads.
I also have enough cash available to back the put spreads that I don't need to increase my weekly return on a % or absolute basis. Sure it'd be nice to have a $25M/year income rate but I'm already up 6x from my best paycheck year, and we lived very well when that was our income. With what I've been learning and doing this year we might be closer to 10-15x next year.
My wife and I are learning here at the end of the year, that giving away large amounts of money is some actual work - who would have thought that, eh? This is sort of a test drive / getting accustomed to giving away much larger amounts of money than we've every done in our lives; I expect our charitable giving, in absolute terms, will be going up for years and years to come. Sure earning more is always nice, but once you've got 2 or 3x of "enough", then at least for us - it's just more to give away (which is a good thing in itself, but uhm...).
This is definitely not intended as a criticism of anybody else - its just my own view on the world and what we/I am doing. If I had $B kind of income then there are currently inaccessible things that I'd like to do. But that's a few orders of magnitude away from where I'm at, with no path to that income / wealth level. A joy ride into space - I think that's in the realm of possible in my life.