Heated tank to mitigate surface tension?

[iplayfast]

I think that controlled surface ripples could be a solution to break over, and it really just needs testing, because at some amplitudes and frequency it will also cause problems.
One Word of caution, a changing magnetic field near the printer head can make the make the mirrors move.
So I suggest a little hack. Say using an arduino connected to the laser enable pin, so that you can try disabling the "wave maker" while the layer is being exposed.

On time I used a solenoid to poke the shutter button of a camera that I couldn't get a trigger cable for, I was time lapsing a print.
To my surprise I couldn't print any thing because when the solenoid was on, the layer been printed were shifted by a hole 5 mm !

I'm not sure how big the waves would need to be, but I suspect small. If that is true, perhaps a piezo speaker dipped into the solution at a resonant frequency. No magnetics to worry about.