I did manage to get Tiger on my Wallstreet G3 300 mhz and it's not half bad. Perfectly useful for light tasks.
and it only took you 8 months
10.4.11 is painfully slow on my 500 mhz G3 i(ce)Book even maxed at 640 megs of RAM.
more power to you for having the patience to run in on 300 mhz. Those machines were built for OS 9.