Splitboard Size

Hey everyone,

first of all, apologies for yet another "what is my ideal splitboard size" post, but after reading about it, I thought it would be nice to get opinions from actual people.

I'm a very competent snowboard with a bunch of experience riding powder: nothing crazy, some small open faces and as many tree runs as I could find (I even invented a new sport while I was it which I call extreme tree-hugging). All of that in Austria where I lived on and off for the past years (and where I am atm).

As I got older I started feeling like I want to enjoy nature more closely than in a packed ski-resort with kids blasting music, hence my move to splitboarding (which so far unfortunately I've only done a single day of - loved it!).

Thing is, I have ridden exactly one board in my life, the DC HKD DEVUN WALSH (all-round directional twin-tip), so it's hard for me to look at boards now and know whether they'd be a good fit... I bought my board some 10 years ago when I was starting, it felt great and I never saw the need to swap it (it's not in a great shape any more, but who cares - I don't need edges if I stay out of the pistes hehe).

I'm 182cm tall (6ft) and weight about 73kg-75kg (~160lbs-165lbs).

So for the million-dollar question: should I stick to the board size I've always had (158) or is it fine to size up? To be fair, it's not that I feel like I need to size up, it's just that most second-hand splitboards I find up here are bigger, so I'm wondering if e.g. a 162 would be fine for me. The terrain here is as I described above, some small open faces and quite a bit of tree runs.

Thanks everyone and sorry for the long post!