I do agree, I use the minfree values from the script in the first post, present in the anerik's unofficial build's first post too (identical values); those are mandatory to start with, IMHO. I tweaked minfree a bit, lowering the values, but I did not noticed any improvement. I have to look for info about adj tweaks yet, since the ones in the script are identical to the stock ones, as far as I could see.
Although I believe that no miracles are possible in the multitasking compartment with 1 GB of RAM.