The lowering blocks change the rear shock angle a few degrees more toward horizontal thus slightly altering the spring rate characteristics. Going up one notch on the setting puts everything back to near "normal". My son (roper) weighs about the same, I'm slightly more (hehehe) and the lowered ride is great with no bottoming out. We did trim the leading fender edge about 3/4" for ample clearance when riding 2-up. Setting the shock up to max will increase the ride heighth some, but the trade-off is a stiff, jarring ride. Adding the lowering blocks and then raising the bike up off the suspension seems counterproductive to me, or did I miss something in your post?
The idea for the blocks was to have a less expensive method of lowering our bikes compared to $400+ or so for lowering shocks.
