i recently purchased a bfg sniper boomslang aka razer boomerspeed
It was rather confusing at first, sence im normaly ust to the nostromo mouse by belkin which is in my opionion the best ball mouse. as i noticed with the bfg boomslang when moved rather quickly at one direction really fast say to turn around it would lag out like stop receiveing info, i suppose it was the 2100 dpi sensors giving out becuase too much info to read at that speed... but over all it was a a good mouse haveing the side buttons and on the fly setting for sensitivity but i wouldnt recommend this mouse at all... i finally made my chioce and went with an optical mx510 (blue version) and purchased a slab of glass marble for the mouse, it wieghs a ton
ill be getting the mx510 this tomarrow hopefully ill be impressed.