Yeah 18 foot face Mac which is generally about my max size these days & I usually get it a few times a year. Pretty common for where Drip surfs.
But there is usually a big difference between West Oz & Indo triple overhead. Indo will be glassy or pretty clean, while West Oz is rarely glassy at that size & what we consider to be pretty clean will still have lumps & bumps.
The Margs Mainbreak (not suicides) right hander at triple overhead often gets this cross ridge at a certain section of the reef I used to try & time my cutback on back in the 90's when I surfed there a lot. Typical of West Oz waves, there isn't these thin lipped barreling point break you find elsewhere. There's a lot of off shore raw ocean swell with swells coming from different angles & speeds causing double ups.
As a result I find it much easier to surf bigger waves in Indo than WA. I can take out a shorter board & epoxy boards don't chatter the way they do in non glassy conditions. There is less chance of throwing you off guard with some random lump or bump at an inconvenient moment or waves tending to be more shifty than a clean regular swell.
Hey Drip your well & truly due mate. Just gotta keep an eye on the tides more than West Oz coz they shift a lot more than the SW. I'm going 3rd School holidays & would be happy to show you some waves in Bali. I will be there for at least 19 days You'd love it