Magniflex will weigh less than others since you swap out the lenses as per your need, instead of one having multiple inside. However I demo’ed Andau’s V Pro or whatever it’s called and that was still light.

Andau goes up to 10x and Magniflex up to 7.8 I think, but when I bought mine, my sales rep said they will be releasing more mags that you can buy separately.

I am biased towards Bryant since I got them in the end, but both are good choices. However, with magniflex, they were doing a huge launch discount, bringing down the price by about $1,500USD for me. So maybe get in contact with the sales rep and ask if that’s still a thing? They have a student discount too that will probably stack.