KCee I have an R Quicksilver. And I also have 1 of these Superlight 45, in R. Haven't played any, so can't comment except to say I've never had a bad HOF product. It does weigh 51 gr. and CPMs are 240; seems kind of sturdy although it's stated as their 'softest' shaft.
SUPERLIGHT 45 = This (45ā)-length shaft is our lightest and our softest shaft series with weights running from 45-to-49/grams with a mid-low bend and high 4.5 torque. These shafts were designed for the Asian market, and they have been very successful there. This shaft is for golfers at the lower-to-mid end of a swing speed range, who want to bend the shaft hard, but who still need a strong-enough tip section to achieve high launch with a flat ball-flight for maximum carry with decent side-to-side dispersion and roll-out.