to be pretty frank: you can get similar dps without going crit, saving item mods and passives and all that accuracy stuff (that hurts Static Strike the most because if initial swing misses == no damage AT ALL).
and with this setup i have 40k. without abyssus that probably grants you 40% of your total dps via flat+multi
going crit with 5% base, without Romira's is quite strange - esp when you can get similar effective 'chance to XYZ' from the tree
BTW - multistrike with Static Strike is irritating, aggravating and in most cases wasteful. i do not understand people using it with this skill. Static Strike main advantage is speed - multistrike roots for 3 swings, when one suffices