I have been browsing the sp guides and i didn't saw this method in any, didn't thought noone wants to share it with others, or you just didn't know?
First of all i don't want to make a fancy good looking guide, i want to be as precise and as short as possible, the ones intrested in professional sping will still read it and use it...
So lets start:
How the party sistem works:
-for every party member joined (ofc who gets xp/sp so lvl1 chars don't count) you get a penality of 10%
-if the average party level is below the mob level you get double sp/xp from party monsters
-outside of 100range you are not calculated in the equation and don't get any xp/sp, neither does the system count you in when calculating the average level
The basics:
-you need 3 nukers 52+, at this stage wizard wont do it
-2 sp farming characters 16-20
-a guardian outside of the party becouse you have slim chances to stand in a safe spot
-willing to do anything to protect your spots on ongs, will be hard to set up the party with 3 farming chars, cant afford to moove too often
The advantage:
-the 52+ characters will get gold and drops, so wont cost a fortune in potions
-it will behave like you would be in 3partys at the same time, geting 1600-2000 sxp for every party mob (400sxp=1sp), 1500-1700 sp/h from each nuker
The setup:
-to work right you have to have all 3nukers in xp range of the low characters (100 is the max xp range, push twice the minus on the minimap, then it will have its borders at 100 from the origo)
-the nukers shall not be in xp range from eachother (you have if they are set up perfectly a radius of 20 for mobkilling)
A bit of comparsion:
-a 72+ wizard onehits pt ongs and you get around 400 sxp an 52+nuker takes it out in 3nukes and you get 1600+ sxp so here you have 33% more from every nuker
here's a pic to visualize:
the black dot on the center means your little chars
the red dots are the 3 nukers
Hope i gave you a few thoughts, happy sp farming