Remember when vegeta got pissed at little gohan? in the saiyan saga? he didn't charge, he just shooted a huge amounts of ki balls/beams and they homed into gohan, like rockets.
I think that the ki blasts should go where you look at, so if you with vegeta do a renzoku, and you look at an enemy or at a spot then the fired blasts should go there, and offcourse the blasts should have long tail/beam/trail.
That would be accurate to the show, but I doubt they will implent this.