i got the point of the thread and thats not why i posted (sorry if i went about posting in a confusing way) , but was just curious since the OP's system is slower and seems to be usable wile running Leopard, i was just wondering how much better the DA would run it ( since it has a QE supported Video card in tiger anyway).
one of the main reasons i posted was to find out another way to install Leopard (since the OP uses a leopard supported system to clone the HDD from) since i don't have a system that passes the virtual cpu speed block and the machine ID check, how would i be able to clone the HDD over to the DA ( since you would need a Leopard supported system to install Leopard onto to do that)
also the other reason i posted is that i was stating the upgrade path i am going to take my DA on. the video card was the main concern, that i think i have taken care of and selected a good one for the job (one that will support both QE and CI). the other is the CPU upgrade (which wasn't a real concern as the video card was), and the last was memory. the video card i plan on buying is a PC card and flash it to Mac since there is a few AGP PC 6800 GT cards on ebay starting from $60 and up. once i finish upgrading i know i wont have any problems running Leopard.
since Leopard will run on a 400mhz G4 (and is somewhat usable) i know that a DA at 533 would be a bit better in performance ( 4x AGP vs 2x AGP, 133mhz FSB vs 100mhz FSB, G4 533mhz vs G4 400mhz, Geforce2 MX vs Rage 128 all would make a bit of a performance boost) i just would not know how much of a gain it would have.
and i was wanting to experience it but not knowing how to get leopard on the DA is going to be the deal breaker until other means are available like xpostfacto or other. i know that once i do get the CPU upgrade (dual G4 1.4ghz) that it will remove the virtual cpu speed block for slower then a G4 867mhz. the only thing i would still have to contend with is the Machine ID block. since i have no other way to install it.
EDIT just found a guide
https://forums.macrumors.com/showthread.php?p=4351400#post4351400
just one of the way's to get past the installer blocks if you down own a system that is under the allowed systems