I don't grow often from seed but I am doing that now. Direct seeded into my 2G SIP about 3 weeks ago. Topping it this weekend. It's the strongest plant I've ever grown. I don't see any advantage of uppotting to a SIP as you're not trying to build a root ball like you would for a normal wet/dry cycle grow. So you'd just be disrupting the established roots for no reason.Can you explain your up-pot method or link me to a post where you explain it? I think @Azimuth talked about running them from seed in the SIP.
I'm happy to be convinced there is some advantage, I just don't see it. And the disadvantages are real.
I would think it would do great as long as you could keep the reservoir from over-heating. That would probably depend on the size of the rez. The larger the longer it would last and have time to heat up.I wonder how a SIP system would do outside with the sun beating on the res all day.
Could just slide it into another bucket (white is ideal) and maybe make some vent holes in that outer bucket. Or maybe burlap or bubble wrap. Just something so the sun isn't beating down on the bucket with roots all day.They do amazing outside. Like, amazing. However, you have to paint white or add reflective material, otherwise gets too hot.
The original to the SIP is the Earthbox, invented by an old tomato farmer from Florida. Those come with a cover to keep out bugs, weed seeds and rain. You cut a slit in the cover where you plant your plant.Its also advised by some to run a cover, and I did on some but its mainly to prevent heavy rains from leaching into rez
I'd just make sure the overflow hole was large enough to handle whatever rain you'd expect to get, and put a mulch layer on the soil surface to try to keep that surface cooler.
Once your plants get big enough, they'll drain the reservoir in a bucket at least daily, so if you're worried about diluting your nutes you could just not feed them when it rains.