I agree that this is probably the case, but Peter would be an idiot if he didn't try to absorb some powers from Sylar if he had the chance. Sylar can't fly, so swoop in, grab him, and BAM! Hell, he could even take the so-called empathic mimicry that Sylar has also (Probably the worst bit of Villains for me was when we Sylar apparently had Pete's ability too. /mindboggle), so that he has his "old" ability back. Then he could just soak em up no problem. There's a multitude of ways that it could happen when Pete and Sylar duke it out.