Originally Posted by corners
Nope. Flex and feel seem to be the same. Actually the asians I've found to be a bit crisper, probably because the vibration frequency is higher due to the lower weight. But in all respects the asian k90 appears to be identical to the us version at a lower weight and swingweight.
Actually, I find the Asian K90 to be a tad flexier than the US version. I'm talking about a very minute difference. It might be because of less graphite used in the layup to make it lighter.