Out of interest do you know how much the Thule rack weighs with bars etc?
The FR one is a pretty hefty at 33kg all in, VW used to rate the roof at 100kg but have revised it down to half of that for all models. There are people on this forum that drive 1,000's of miles with two tandems, full size kayaks etc on their roof so the revised roof weight is almost certainly a conservative rating probably based on taking a ultra cautious approach that is (sensibly) very common in the automotive industry!
My FR rack is typically loaded with one of Roger’s solar panels (3.5kg with hardware), tyre table (6.5kg) so c. 43kg on a daily basis with the weight mostly on the back. On big trips I may add two wolf packs (wet suits, firewood, extra camping gear etc) and an inflatable SUP. I reckon my maximum load carried is c. 65-70kg. The hydraulics will lift that easily with the bulk of the weight at the back and probably another 20-30kg more. I do always unload the boxes/SUP etc before lifting the roof though to be on the safe side.
I think there is definitely a market for a manufacturer to bring out a rack similar to the FR one in size, function and aesthetics but engineered to be much lighter. I see no reason why such a rack would weigh any more than 20kg - Front Runner and the other overland outfitters like Rhino build modular racks designed to carry much heavier weight (roof tents, spare tyres, water and fuel jerrys etc) which is overkill for the Cali.
Any engineers up for joint venture?
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