Easy way to switch between 35 Hz to 33 Hz tuneing

[RooTxBeeR]

I was screwing around with Torres calc and figured out a box set up that with my subs inverted on the box( they are .1 displacement for a 250 watt rms 10" sub) would be tuned to 33.17Hz which I want to tune to 33Hz. Now if I put them both in my box normaly it will be 34.55Hz, close to 35 Hz, so if I wanted to I could easily switch around my tuneing. What does everyone else think of this, sound like a idea that would work?

[fritosaregood]

you wont notice too much of a difference switching, if anything youll notice a small drop in output when going to 33hz, but a tad more low end.

[Robert8252]

Won't hear much of a difference.

Edit: ninja'd!