For me what helped go from Crow to Crowmobe was:
For any trick landing blind (if you're not use to it) I suggest doing a bunch of switch inside-out backside 180s. This gets you muscle memory for the end of the trick, do this a handful of times before you start throwing the trick. Also if I know I'm doing a trick I'll be landing blind on I try and make a line from the "V" of the wake to the shore, when landing I try and spot that point behind me to stop my rotation... bring your head all the way around to looking towards the board again keeps you spinning.
Stand up very tall off the top of the wake, use a short progressive edge to make sure you go straight up and down. Keep the handle tight to your front hip.
Pop off the top of the wake and initiate the trick almost the same, take the handle with both hands on it and pull hard to your back hip.
As you come around and are 3/4 of the way release one hand and put the handle at the small of your back, turn your head and shoulders to finish the rotation and try and spot something on the shore behind you to keep from rotating.