Songhan, have you ever tried using the Ninja, in a pull configuration.

Technically, if your fan has to blow through the fins, it's kinda has more restrictions don't you think?
However, if it merely pulls....doesn't it sound better?

just a suggestion

he's got atcs's

It's not necesarry to go all the way with powder coating, if you're good enough on the paint cans, sandpaper and polishing compound.
a lot of trouble, but I believe it's possible to achieve the same level of finishing (give and take)

I did that once and ruined four small pieces of arclyric (i can NEVER spell it right)
In the end, found out must use hi-grit electronically something kinda sandpaper baru results come out acceptable.

WHY didja change the lianli?

silon, don't be offended, but

"NOOB!!!"
hehe, we were all there once.