I did tonight and it was AWESOME!!
There's an added element of fun/suspense in not being able to see quite where you're going or how rough the waves are gonna be, but still giving the illusion of moving through a forest river at night. Plus, that second tunnel is DARK at night, a good 5 seconds of pitch black. The geyser field at the end looks great too when backlit at night - you just come out of the final drop and go into this mist cloud.
On another note, my pass is expiring (I can't afford to renew it right now for budgetary reasons) so I spent a few hours tonight and last night at both parks getting those last few rides in. I got two runs on GRR in, which I was glad for because my wife refuses to go on that ride because she hates getting wet.
At least when I can go back again the novelty will have return and I ended this AP run on a high note.