Best BRNO #4 trigger upgrade?

[triggerhappy69]

I was wondering if anyone knows what the best trigger upgrade would be for a BRNO #3.I read about the Eric Brooks kit,are there any other upgrades available?
Thanks in advance!
Walter
Wups!!It's a model #3!!lol

 

[wagthedog]

Yodave has the best kit for springs and shim kits. Apparently Eric Brooks has poor to nonexistence service.
Join rimfire central, there's a lot of info available there.
Nice Brno, btw.