I missed that the one you linked has no adjustable feet, that's a big nono
Main tubes are 40mm OD on my DIY aluminium tower. The 48.3mm OD tubes on Agroshield's tower would probably be at least 50% stiffer in bending, if both types used the same wall thickness (section modulus being related to the cube of the diameter). I suspect the pro towers may have thicker walls, and be more like 80% stiffer. Cross-bracing and clamps also tend to be much beefier on the pro models...... diameter of the tubes: it is very helpful if they are the same diameter as traditional scaffold tubes (2" nominal, 48.3mm).
I have fitted resin anchors at strategic points around the house for it and have made wooden wall spacers, so when it’s strapped to the wall with the spacers fitted its rock solid(zoom in on photo and you should see them),
thats posh. a bit of scrap 2.5mm cable is ok round the drainpipe or tied to a few shrubs if not good for tying the ladders on the van as wellYou can't fool us, you have it ratchet strapped to the downpipe