Cant help specifically, phone Dick or email email@example.com
The numerous models and variations of the Vari X 3 and the newer VX3 are avaiable 14.5 to 35 (from?), 18 to 40 (from the 6.5 to 20LRT,) 20 to 50 (from the 8.5 to 25LRT.)
Mark 4 illuminated variables cannot be boosted, i asked the question last year. The genuine Mark 4 can be boosted i had one fixed at 35, stunner i want it back. 32's are a bit milky.
Not everything he does is on the site!