My Advanti MI525 has been using since 2011 and go through countless holes, pots and uneven surface, yet it is still very balance rim and no bent/dent on the rim itself, just change tyres Jan 2014 and ask them to check the wheel balance only without the tyres mounted on it, all 4 wheel nice and balance, just the colour of the wheel got abit faded.
The Advanti S1/S2 design just like RAYS gram lights 57Xtreme SP spec, shaving off some weight out from the spokes and still remain the rigidity of the wheel. More and more Japan Wheel makers also start using this kind of method to shave off more weight.
BTW SSR type-C is Semi-Forged and not Forged wheel