After a lot of searching for a stable rom for my GSM Hero I was all but stuck on V13. I never even considered a 2.3 Gingerbread rom as I thought the hardware wouldnt be up to the job.
Then I stumbled upon this thread:
androidforums.com/hero-all-things-root/374776-htc-hero-cronos-ginger-x-2-3-1-android-2-3-4-a.html (you'll have to copy this link as it would seem I am not trusted to post links yet.... though I am allowed to use sharp knives under supervision)
I did a full reset and dalvik wipe via ClockworkMod and installed
HTC Hero Cronos Ginger X 2.3.1 (Android 2.3.4)
I have set up as follows:
Evo3 Kernel: Cronos Android, Android on Steroids! • CG-2.2.4_KP_.zip (link in other thread)
Wifi Fix: Cronos Android, Android on Steroids! • CG-2.2.4-WiFi-Fix_.zip (link in other thread)
Gapps: gapps-gb-20110613-signed.zip (link in other thread)
Launcher: LauncherPro Plus (paid version from the market)
CPU over/underclocked to 672/264 with a screen off profile (Set CPU free from the market)
Its been 48 hours+ since my install and I literally have never sat the phone down. Loads of customisation, very slick to use and literally not one issue. No Force Closes, every app works 100%.
Messaging, mail, camera etc all working 100% stable and reliable.
It would seem my quest for a good Hero rom is over.... (for now)..... thanks to what I am calling my Ginger Hero.
Hope that helps the OP.