I've got the same board, 2016 V4, different colour, but same shape. The graphics look nice at first but rub off. They seem to have taken feedback onboard and now dont tart them up and they use plain colours.
Otherwise, I've had the same experience as you. I dont use the plastic anti-twist tabs, but tighten the footstrap tight, use the metal plate and they dont twist.
Longish planing flat and no tail rocker gives early planing and speed, but as you say, you cant crank it around tight off a wave face on the way out, it requires a more moderate radius turn. I've got a wavier 85l board for when there are actual waves.
I'm 78kg and use 4.5m wave up to 6.5m 2 cam. Great all rounder.
I bought this one to replace a 90l V1 2005. I've also got a 2009 V2 106l.
2020 there is a V5, which looks more modern at 230cm long, but hope they haven't cocked anything up. I doubt they have as its their best seller.