Good choice of player type specially for a SG...though I would recommend a "Slashing" SG, a Scoring-type will be my second best option. As Andrew have pointed out, adding points in the mental ratings (speed, quickness, vertical, etc) is truly a must. Defense wins championships! On-ball def, blocks, steals, are the way to go to stopping some of the great SGs like Kobe, Wade, Ellis, that you will be up against. Offensively, Knicks is a great team, you got 2 more good scoring options(Amare & Melo) might as well work more on your passing skills. Run some plays so will know your role in the early part of the game, that way you wont be a total nuisance in the offense.

Good luck!...and see you in the Playoffs.