Varus Hybrid dps ownage

Well to start off, I am not a diamond tier player, nor anywhere close, Most of my trial runs with this have been low elo or wood 5. That said, I have been playing around with a hybrid varus build for a while that did a decent amount of percentage dmg, and didn't have to rely solely on a 45 percent cd. My build starts off with doran's ring, two pots, and the vision trinket. Pretty standard for an ap champ. I begin maxing his w right away. I don't do any hard engages unless the enemy is being stupid with overextends and such. Bottom line I farm like a cornfarmer in indiana who just found out that corn was now the same price as gold. I build Nashors, Wits end, Rageblade. These three usually is enough for me to carry to endgame. Farming more if I stall out during mid I pick up gunblade, and lastly hurricane, which last I tested still applied my blight. boots are cd since at this point I am pretty sure I am maxing out attack speed. Anyway rip it to shreds and let me know why this might be a bad idea on Varus, or if I might actually be on to something.