There's a good small nut in the actual corner, not in the thin cracks on the left where the peg used to be . If in doubt step right to the good resting ledge where you will find the stub of an old peg. Right next to it you will find a bombproof small nut placement. If you think this is E3 then what grade would you give the E1 6a finish to G String which is very similar in nature but much much harder ?
Incidentally I can't see how this is included as a top pitch of Burlesque as it's nowhere near it. It's more logical to do it after finishing Vector or Weaver. From the last stance of Vector climb down the slab on the left and your there. The groove is immediately above you. It's a very good problem and worth doing

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