So its been awhile since I've been on the site, I sold my Tahiti due to financial reason in 2012

. But as you all know that jet boat owners cant stay away for too long, currently

I'm in the process of buying a 78 Southwind with BBF, bored .60 over, roller cams lifters and rockers. My question is from a statement the current owner said, He says the hull noticeable flex to it. Should I be concern with this, or is this normal for this style of hull? Thanks in advance for the advise, and glad to be back.