Good technique is good technique, no matter the wave. The biggest difference with steep vs fat waves I would say is time, as Graham mentioned. Fat waves roll in slower than steep waves. You got some time to glide and walk up. Steep waves you got to be fast and absolutely looking where you want to go, because the steeper the wave the quicker you need to get on rail. 

That being said, steep wave take offs can be a bit easier - in terms of walk up - because gravity is on our side. While we popping up, the board is going down so the gap between our chest and board opens faster allowing us to get the front foot through easier and sooner.

Next factor is the board. A long board is going to get a fat wave sooner than a short board, if at all. Mind you, long boards catch steep waves sooner as well... :)

ooo, I like monthly challenges... I might just have to join you on this one... Get my ass back into gear so I can take on Super Tubes this winter. 😂

The way those waves come rolling in... So beautiful... Awesome looking faces, speed looks good.. Wish I had a teleporter 😆

Well done on getting out there and taking up the challenge!