The first blade I ever did this to was a Calix II I got from Nexy Korea when I lived there, then I did it to a few 896 blades...
Then on TTD, I did it one the Stiga Allround Evolution...
THAT thread was the original Beast Mod thread.
I have prolly made 3-4 threads on TTD about this mod. I know I made threads about Abe's Nexy Spartacus, the Nexy Kanaph, and the Kim Jung Hoon that Nuke Skywalker currently has.
In general, making the blade heavy down low and filling in ALL and any empty space and reinforcing it with anything, that makes it perform better in almost every measurable way. Since it is so solid abd stable, of curse the blocking is gunna stand out. Even as a dynamo offensive juggernaut wanna-be Rambo attacker, I still do a lot of blocking at the table and this mod really helps that. Not just that, but when you make a variation in grip pressure at impact, you really get a response over what the blade was like before. Amazing what a little extra weight and solidification can do.