Yes, just the end. If you have a caliper measure the overall length. Lap the end of the needle flat on the end just a very small amount. (squared end, just like it is now) Two or three strokes and measure it again.

A lot of times the needles are not machined properly, magnified you can see it. Try and clean up the flat on the end and try running the engine. If the mid range starts to get better you're on the right track.

A little goes a long way.