no, when you transfer coins to your wallet 10 days before hipos and then close the wallet, reopen it at hipos-start, the coin age would be 10 days. i did the same on pex.
I didn't even know this, it was iGOTSPOTS that told me, when I alerted him of the HUGE STAKES and HUGE WALLETS on the blockchain. Somebody has made out big.