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[FrodeSolheim]

Here are some suggestions for default "models":

"A1200/020" - same as Amiga 1200, but with 68020 instead of 68ec020 and 64 MB Z3 RAM - corresponding UAE options changed:
cpu_model=68020
z3mem_size=64
cpu_24bit_addressing=false

"A1200/030" - A 68030, still cycle-exact, but clocked double as fast (28MHz) as the stock A1200 68ec020.
cpu_model=68030
z3mem_size=64
cpu_24bit_addressing=false
cpu_multiplier=8

"A1200/040" - No longer cycle-exact, CPU is running as fast as possible
cpu_model=68040
z3mem_size=64
cpu_24bit_addressing=false
cpu_speed=max
blitter_cycle_exact=false
cpu_cycle_exact=false

Are these different configurations sensible you think? I haven't used such setups, so I do want comments/feedback/suggestions. Here is a build with these models:
http://fengestad.no/fs-uae/files/fs-uae-0.9.8beta2-macosx.tar.gz

(Also, virtual file system support is improved/updated - boots the "Amiga Forever desktop" now)

[FOL]

Here are some suggestions for default "models":

"A1200/020" - same as Amiga 1200, but with 68020 instead of 68ec020 and 64 MB Z3 RAM - corresponding UAE options changed:
cpu_model=68020
z3mem_size=64
cpu_24bit_addressing=false

"A1200/030" - A 68030, still cycle-exact, but clocked double as fast (28MHz) as the stock A1200 68ec020.
cpu_model=68030
z3mem_size=64
cpu_24bit_addressing=false
cpu_multiplier=8

"A1200/040" - No longer cycle-exact, CPU is running as fast as possible
cpu_model=68040
z3mem_size=64
cpu_24bit_addressing=false
cpu_speed=max
blitter_cycle_exact=false
cpu_cycle_exact=false

Are these different configurations sensible you think? I haven't used such setups, so I do want comments/feedback/suggestions. Here is a build with these models:
http://fengestad.no/fs-uae/files/fs-uae-0.9.8beta2-macosx.tar.gz

(Also, virtual file system support is improved/updated - boots the "Amiga Forever desktop" now)

How about immediate blit when not using cycle exact. It helps with speed (I have never come across issues unless you run some certain adf games / apps).
I always use it, on my configs, PSPUAE defaults to this.

[Hungry Horace]

i dont seem to get as much noticable slow-down problem from 0.9.7 using 0.9.8 beta 2 , and using the A1200/040 setting....

however, in-game i noticed some gfx (rather than sfx) stuttering... and the log confirmed it. (attached)

[FrodeSolheim]

i dont seem to get as much noticable slow-down problem from 0.9.7 using 0.9.8 beta 2 , and using the A1200/040 setting....
however, in-game i noticed some gfx (rather than sfx) stuttering... and the log confirmed it. (attached)

The /040 is "too hard" on the system currently, which causes gfx stuttering. The next version will properly set the UAE setting cpu_idle to fix this. (Also, regarding audio stuttering, the next version has a better-tuned PID controller for controlling the audio pitch, which may reduce the audio stuttering)

Edit: The /030 and /040 options need more work, and will probably be removed in 0.9.8. But A1200/020 works fine, it will still allow lots of RAM for WHDLoad setups.

[FrodeSolheim]

The latest version (09.10) has an undocumented model "SUPER" which is a high-performance Amiga with 68040, fastest possible mode. Fastest possible mode should now work well, but full video sync cannot be enabled when using fastest possible mode (sync to vblank to avoid tearing is still possible).

[Hungry Horace]

cool bananas FS!! 

[FOL]

sync to vblank to avoid tearing is still possible.

Bah, tearing is a myth, . Never used it in my life.