“A v shape like that typically does not leave much room for rim weight accumulation”
lol, i never made a yoyo with heavier rings, Nobunaga or Masamune doesn´t come even close, Steel is dense enough to fit more than half weight in a small area.
Another shape on a pocket size will have too small catch zone, the idea is to make it as playable as the big guys, and it is, you can do anything that big throws can and much more than any pocket yoyo ever before, specially in power.