The leverage is in the wider starting beam even when on just the aggressive axis, I don't understand unless your cyl pair is not 18xīoth these are 44's with G2's and 6X pairs and are fun with that static set up for the short range, moving the convex cyl like you do would fine tune a sweet spot in the short range but would not make an appreciable difference burning at 50-100 feet. I just don't see how you get a 8mm wide beam with an 18X cyl pair using the same diode and primary lens. We both start near the G2, the G2 is focused to infinity and I have sharpened up the line a little closer but the difference is small. If I used an 18X cyl pair I should get a much wider beam at my aperture, that's where the leverage comes from, just like the 3X BE makes the beam a lot wider to start, that is the leverage.
I set my concave cyl very close to my G2, the G2 produces a 2 inch wide line at 15 feet, adding the concave cyl makes that line 3 feet wide and then placing the convex cyl at 35mm from the concave cyl brings that line down to about 8mm wide at 15 feet. Using a NUBM44 with a G2 and 6X cyl pair I get about a 7mm wide ribbon of a beam that expands to twice that at 30-40 feet, this makes a fun burner that I don't have to adjust, just turn it on for burning up to 30-40 feet, add a 3X BE and it lights a paper bag at 105 feet with a little patience.
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