I've created a spreadsheet with 40 options. Prices and heights and weights and leg sizes and test results etc.
I need a random number generator, I think
Anything that doesnt meet the height, bin
anything that doesnt meet loaded weight, bin
you’ve no tripod weight restriction
anything without twist locks bin
i suspect from original post that stability is your main thing and that will be a function of the leg dia and height. Its not a straight line function either and if you only partly extend legs then that has an influence. I’d base on biggest tube dia as the other smaller dia leg tubes are usually related to top tube
In your spreadsheet divide extended ht by biggest leg dia and use that to rank, smallest number at top.
is there anything about the top ranked one you dont like, outside budget preference, ratings from trusted site poor, just dont like the brand (shouldnt be in list if not an option). If not buy it, if there is move down.
you might have 3 or 4 with similar ht/dias then i suggest you redo the ht/dia for the subset based on the tripod with the min ht diameter and use that ht for all. Leaving 2-3 cm unextended in a taller tripod really helps with stability. You can ger to the same small subset and do price.
Its a bit overkill to choose a tripod but you’ve done the donkey work now.
a few years ago i was doing LE work and got fed up with movement of my manfrotto 190 on 3-5 min exposures. I bought a used Gitzo GT5531 tripod. It was great stability wise but one of the twists occassionally started slipping. I bought the expensive replacement plastic shims but no help. Put up with it for years just overtightening the dodgy twist and hoping for best. Eventually it just p***ed me off and i sent it off to one of the shops for a sale price and took it. I was looking at a replacement new and that was £800-1100 for 3 legs and some locks for the Gitzo 5 series. I looked about and there was a chinese company selling one with better specs than gitzo for £300.
i took a chance on the as90c. Came with rubber feet, spikes, standard head plate plus 75mm levelling bowl. It’s been great. So much so i got its little brother the as80 for when i need to tuck the tripod into the side of my bag. It was a punt but honestly my view is even if gives me 5-6 years i could have 3 or 4 for the price of gitzo legs then theres the accessories. If the same package was being sold by Gitzo/ RRS you’d be up at £1500+
i add this last bit as its likely a lesser known brand will end up quite high on the spreadsheet and in my experience its worth not just rejecting. Tripods are overpriced at the upper end by the manufacturers as a branding exercise. Manfrotto and Gitzo are the same company. enro is chinese you:ve just heard of them.
Good luck with choice