EXS 24 Logic Sampler Users Group

Folks, any help to optimize my system for HEAVY EXS24 use would be greatly
appreciated. I'm getting crackling and Core Audio overloads. I am running
all 64 instruments which are all EX24 except for one EVB3 and one EVP88. I
have trimmed my polyphony as best I can. My Logic file has 1.27GB of
samples! And I'm using one instance of Space Designer.

I am re-encoding the picture I'm scoring to to a smaller size.

So, it's safe to say that I just might be pushing my luck, here. Regardless,
here are my particulars:

Sawtooth Powermac, upgraded with dual 1.3GHz G4 processors, 2GB RAM, 7200rpm
(2MB cache) drives, Radeon 9000 Pro GPU, Hammerfall Light card. Panther
10.3.3 (haven't upgraded to 10.3.4 yet. Would it help??). I have killed as
many processes as I can to the extent that I am able to understand their
function (UNIX! WHOA!), and have disabled all third party pref panels, with
the exception of my mouse driver (using USB Overdrive).


Logic Pro 6.4.2.

Core audio drivers configured as:

Track count: only four
512 I/O buffer
64 busses OFF
Software Monitoring on
LARGE process buffer range
Larger disk buffer enabled
Rewire behavior: "Playback Mode" (less CPU load). I am not using Rewire.
 

EXS24mkII preferences:

Sample rate conversion: normal
Sample Storage: 32 bit float

Now, here's the one I don't know about -- and is coincidentally ABSENT from
the manual: the EXS24 TDM mode setting. As I am not using TDM, what is the
best setting for this parameter that would result in MORE JUICE for native
EXS ? "Strong"?

Also, despite me using the 32 bit float which loads all the samples into
RAM, the System is STILL having to resort to virtual memory (no surprise
there). In light of this, does it matter whether I'm set to 32bit float or
not? Will the processor still get a little bit of a break if I leave 32 bit
float ON?

Any help would be GREATLY appreciated :)