I was a developer with CATS. I have both the originally provided 3.0 and 3.1 kickstarts. I have had an Amiga 1200HD now for years with an '030 accelerator. I have never had a really good reason to load Kickstart 3.1.
Most of the time my OS has been KS 3.0 WB 3.1 and it worked together fine. While I don't dispute anyone's issues that there is issues with the 3.0 graphics.library I still have never found it affecting my use of the machine.
Addressing high amounts of memory on an Amiga has never been a need of mine, and I admit I don't try to adapt classic hardware to modern hardware needs. Everything I loved in terms of classic software already works great. I am also not one to play that many games on it. If I did, I'd probably get an emulator out anyway and start tweaking on PC hardware.
While I think most posters are giving good advice here, I am a good example of someone who bucked the trend and never had to replace the 3.0 rom. Of course I can "RAM KICK" any version I pleased.
I am just saying the advice given here shouldn't be so millitant. I certainly haven't limped along by not doing it, and I really do know the differences in the ROM, down to EXEC modules..
PS MY 3COM PCMCIA ethernet card works fine with 3.0 in ROM as well as any CDROM filesystem out there..
