8.6 worked quite well on my old 7100/80. Seemed quicker than 8.1, surprisingly. Probably due to there being no 68k code in it. I continued to use it on my 7500/100 (with 200MHz 604e installed), until MSN Messenger started requiring 9.2.2. At that time, I had to upgrade, since the interface of MSN Messenger was better than Mac Messenger's interface. Still using that install as my Classic Environment OS on the G4 digital audio (yes, been bad - haven't done a reinstall of said OS since 2003 or so), albeit with the System Folder copied from the original 3GB Quantum Fireball to the current Seagate 80GB drive. 9.2.2 was a little slower and the fonts seemed a bit strange compared to 8.6 with the font fix applied, but I got used to it.

-J