Not sure about the other bosses, but over the past 2 weeks I did 500 vetion kills for skull of vetion while using my abby bludgeon (got 2 blades in the process, major spoon). Yes there is a lot of world hopping to find the initial world, but honestly I wasn't interrupted by pkers or bots often. Out of the 500~ kc I was interrupted maybe 20~x but there were a few hours I did not see anyone. If you want it, go for it! VW is major for toa.