Method: Double reduction
1. Reduce to 3x3x3 turns and 120 degrees corner turns
2. Reduce to 3x3x3
3. 3x3x3 + any parity
Building those edge triplets is so time consuming. It takes over half of my solving time easily.
If you like solving big cubes, I'd recommend trying this out. It's pretty fun despite the bad turning. It's all mostly intuitive. I don't really use any algs apart from 3x3x3 algs and parity.