I did a little research into the slow n sear but give me the nuts and bolts if you can
i have a SnS - so i'll take a stab - imagine a much more efficient "snake" method - but in a basket that holds all your charcoal ... i'd personally recommend the Plus model w/a water reservoir ... it's very well constructed (16 ga 304 SS) & i've had mine now for 3+ years & it's still going strong ... i can fill my SnS all the way full with charcoal, throw a few chunks of hickory on top, & get anywhere (easily) from 12-16 hrs of smoke time w/it ... when i got mine (i ordered direct from the founder/owner) i went ahead & had him throw in the Maverick digital thermometer, as well -- it's got a grate probe & a meat probe ...
they have a YouTube channel so you can check it out & see how they recommend using it -- but it's brain dead simple to use, and IMO is a game changer (along w/using the digital thermometer) ... i thought i was doing great BBQ until i ate smoked meat w/the Weber & SnS ...
the Sear part of it works awesome, as well - i’ve done some fine reverse seared steaks with it ... & it makes making smoked wings a snap ... but mostly, i used it for slow smoking
i’ll also add that i have a heavy duty cover for my Weber, and it stays out of the weather - i’ve had zero issues with rust ...