Ripping P90

Hey I noticed a mistake in the P90 tank top, I decided to fix it, my center decrease is off-center in the beginning of the fourth and final triangle, I cannot leave it seeing as the center decrease is visually important.

The lump in question at the point between the 2 triangles, in the middle of the photo. The stitch marker is another mistake which is very easy to fix.

I posted to the Multidirectional Knitting yahoogroup, and got a response, cool. The suggestion didn't work, boo, so I ripped the whole thing, and will see if I can re-knit the piece. I am not up to it at the moment. Perhaps I'll rip the other side too?