I brought a 320 grit sanding sponge to work with me to try to sand the aluminum center sleeve of my Immortalizer clone to a semi-polished finish. It didn't work too well. Aluminum isn't as easy to polish as stainless, it seems. (I didn't ruin it or anything. It just didn't do much of anything.)
Anyway, since I had the sanding sponge here and the devil makes work of idle hands...
Before:
After:
I also knocked down the sharp corners of my ELA's locking slider and button, making it a little easier and less stabby to lock and unlock.