@cammy
"3.9 is slow because of Picture Datatype, among other things. On an AGA machine, it is very slow remapping all images internally from 24bit to your palette-mapped Workbench screen. "
Hmm, this is only true if someone uses 24 - 32Bit stuff all the time (WB backgrounds, icons etc.). This will be slow on a 3.1 system (with appropiate patches) as well. A 3.9 system can look and feel speedwise like a 3.1 system incl. all nice stuff you gain from the 3.9 update (AmiDock, AsyncWB, semi-kernel patches from BB2 et al.). It is always depending on how you configure/tweak your system. Due to a CRT problem I used my 030/OS3.9 for some time even with a A2024 (!) - 4 colours on Workbench (!) - without any real (speed) problem.