No defence-checks of course. That is subterfuge too remember
Aimed Shot require stealth but firing off an Aimed Shot puts snipeshot in 11second recharge. Aimed Shot is made as a high-damage opener and this damage-capacity can easily be increased as the pvp-cap remains to 30%.
Then snipeshot is the re-usable special attack which caps at 13k.
That would be good with current stealth-mechanics imo.