Because If You ended up bought the non-Lune Then You willat some point feel like You should have got the Lune. I have bought the Octa RG Lune with the newest moon version(nasa) I feel that I have made super good decision! Trust me, Go for the Lune. You will feel completed!
Yes , I changed it bu my self. It happened that the new 2021 PP models they come with quick release tab on the strap, So it us very easy to make any change any time. Still need a steady hand and change it carefully,