Puck.js v2 Accelerometer/Gyroscope output...

Ok, after a bunch of messing around I figured out what's been giving me trouble. In the process, I've learned a few things, but now have a bunch more questions... hehehe.

1) Is it true that the gyro is the more "power hungry" part of the IMU vs the accelerometer?

2) The puckjsv2-accel-movement module puts the accel/gyro sensor in a low power mode mostly by turning off the gyro, correct? Why does it put CTRL1_XL to 12.5Hz?

3) Would you be willing to make some more comments about the sleep() and wake() functions in the code?

function wake() {
  digitalPulse(LED1,1,10); // indicate awake red
  timeStationary = 0;
  advCounter = 0;
  Puck.removeAllListeners('accel');
  Puck.on("accel", onAccel);
  Puck.accelOn(26); // 26Hz
  Puck.accelWr(0x11, Puck.accelRd(0x11)|0b00001100); // scale to 2000dps
}

function sleep() {
  digitalPulse(LED2,1,10); // indicate sleeping green
  var last = getTime()+2;
  Puck.removeAllListeners('accel');
  Puck.on('accel',function(a) {
    if (getTime()<last) return; // ignore events while accelerometer settles
    require("puckjsv2-accel-movement").off()­;
    wake();
  });
  require("puckjsv2-accel-movement").on();­
}

4) For instance, in the sleep() function, why run puckjsv2-accel-movement.off(), then wake(), then puckjsv2-accel-movement.on() in that order?

5) I seem to be seeing some lag in the gyro output immediately after waking from sleep(). Is that to be expected? Does the gyro take a moment to turn on after being shut off with Puck.accelWr(0x11,0);?