[he resists the urge to snort-- Vegeta would say that.]

I can do it quicker, but it'll be a bit weaker. If I pull too much too quickly, it'll knock me out. [He shrugs, the blade in his hand glowing steadily. It wasn't exhausting him like before-- the problem was, he'd realize, he was human. He couldn't channel that much energy that quickly without backlash. He needed to control the flow. Three seconds wasn't too long a wait for a decent effect, if he found the right opening, and he'd used similar blade techniques to great effect in combat, if not... quite like this.] Like this, I can sustain it and fight properly.