question: if you were to throw in nothing but scorching rays to this tennis, couldnt you also direct all but one ray at something else?

because you're still shooting at least one ray at the other spellblade, it stores up a scorching ray cast by a caster level x. then on the next round the other spellblade-wielder shoots out the scorching ray and aims at least one ray back into the first spellblade.

so you could keep the tennis going and launching extra rays at other people. does this work?