Are you seriousing us?
but seeing as how you are asking about accuracy maybe you are serious....
Short explaination of BiS.
Best in Slot
refers to a specific piece of equipment that is "better" in the next gear tier. For example, your Sentinel has BM gear on now.... Lets look at the something easy, like the head piece
BattleMaster Weaponmaster Head:
As you can see the Enhancement on this piece has power and acurracy. In your case, you already have too much accuracy, so you should swap it for a piece that has a slightly different stat allocation in the WH tier
War Hero Force Mystic Lower Robe
So then you have a Power/Surge Enhancement instead of a Power/Accuracy enhancement. This particular Enhancement is BiS for DPS and healers of any class. You don't have to specifically use that piece, as a few other pieces have that with that particular enhancement, but you get the point right?
In your case, buying a "full WH set" as Jeezi suggested would not be advisable, as you will have the same problem... Too much accuracy problem. Since BM is fairly close to WH, when 1.6 comes out. You should buy any WH pieces that contain:
This Mod (need 9EA):
This Enhancement (need 7 EA)
but do yourself a favor, on the list of items that contain this enhancement, buy a specific class piece that could use the mod in it(companion or alt), i.e. I have a low level sniper, so I bought the War Hero Field Medic's Shotgun
: gave the enhancement to my Knight, and gifted the mod to my sniper alt to use when she hits 50
1. Augment your BM gear if you have not already.
2. Buy the applicable pieces above, pull them out, and put them in your BM gear.
3. Carry Crit/Acc in your ears/implants at the WH level.
4. GRADUALLY, replace the armorings with WH ones as the EXP is the same and main/endurance are only a +3 gain per slot (nothing worth wasting time buying a full set for).
Voila! You are now BiS for War Hero level.
Ask Mr. Robot is very helpful.... I rate it +5 interwebs...
[EDIT] Sorry,.... heechJunzi... Jeezi sound better though....
[EDIT2] Also OP, since the BiS MOD and 2nd best enhancement is in WH Vindicator gloves. I would buy 9 of those first. The gloves don't cost as much as the other pieces, and you can use 1EA armoring(hands), all the mods, and all enhancements. Then replace those enhancements with the BiS one as shown above.