So I'm not trying to flip you to cloth, you love Sips and this is your hobby, you deserve to love it how YOU want to love it.
No wrong way here unless it gets to be something you no longer love.
I want to change your Sip approach to improve it for you.
This is too big for you, so scale this idea down but....
What if you took a 2gal plastic pail and used a dremel or hack saw blade to cut away almost the entire bottom and 90% of the sidewalls, leaving only a skeleton of the bucket, flipped it over, pulled a cloth pot over it, and used that inside a 5 gal pail as an airdome.
Do you think your roots would now have more oxygen than a conventional Sip?
Synergize that.
A Sip for Los.
High brix too.
I've actually thought about something similar based on how I started my veggie seedlings this year. I used to start them in 6oz Solo type cups, then moved to Soil Blockers which gave me a better root ball (cube?) because of the air pruning on all sides including the bottom if the blocks were elevated on something like a cookie sheet cooling rack.
What I didn't like about the blocks was that they could be quite fiddly. It was a challenge to get the right soil mix for them to work properly. Too little moisture or too much aeration and the blocks don't hold together, too much and you drown the seedlings. And then watering when they first emerge was also a challenge as the water could wash away a soil block if the roots were not developed enough to hold it together.
But, when you get it right it's magic.
What I did this year instead was start them all out in 3" net pots. Now I can have a nice airy mix but in a pot that holds things together mechanically while still allowing great air exchange and therefore air pruning of the roots.
It worked so well that that's my new go-to.
So, naturally I thought about turning one of my buckets into a Swiss cheese type thing to allow air into the sides. I could easily line the inside of the bucket with root cloth or a fabric pot to keep the soil in.
And, I'll probably try that experiment once I get a few runs under my belt so I have something to compare it to.
Interestingly, that's the setup I use with my 1L SIPs. I used a soldering iron to make tons of holes on the sides of my 1L containers and I drop that into a slightly larger outer one. Watering from the top is a bit of a pain when the soil dries out since it all wants to run out the sides, but I've been mostly watering them from below.