When I was in my late 40's- 50's, at 6' tall and 205lb, I would get eggs around my own height or slightly less, 21" wide and 2 7/8" thick. It was more than enough then. The problem now is the size of the boards in the lineup has increased. Then it was guys mostly on HP shortboards. Now, on the points it's mostly longboards and around 7' midsize stuff. So I don't know. You adjust to the level you want to go. Take it up whatever size you need. I've cut a very few of them at 8'. I have multiple versions. Start at 6'2" and run to around 7'3".
Did one for my son a little bit ago that he is in love with. He's about 6'2" and 175. He loads for me here and there, and is ghost shaping for someone else, so he's been around a little now. Did his board at 6'2", 20 1/2, 2 5/8. (it probably finished out at 2 9/16") He was shocked at how little it limited him as opposed to some of the other stuff he rides. Equally shocked at how easy it was to surf and catch waves.
Did one for my son a little bit ago that he is in love with. He's about 6'2" and 175. He loads for me here and there, and is ghost shaping for someone else, so he's been around a little now. Did his board at 6'2", 20 1/2, 2 5/8. (it probably finished out at 2 9/16") He was shocked at how little it limited him as opposed to some of the other stuff he rides. Equally shocked at how easy it was to surf and catch waves.
) But once I got it figured out as to where to push on it, the problem vanished for me. I have no problem surfing crap on a Bonzer. I know other people feel the other way however. Different strokes. But you can order an egg as a twin fin. I did that Russ Short as a twin fin. He's been known to do thrusters for local people/regular customers. Not so much for more removed requests. I can't blame him. He has tons of work with Bonzers alone. It's where his heart is obviously. But, it is possible...