Tx246,

I can totally relate, especially if this is your first boat. I had a similar problem. I bought my first boat, an 83' H16, about five years ago. It was love at first sight. As I became more interested and knowledgable, much to the thanks of this site and the hobie site, I too learned that I had the dreaded "soft spots". My whole starbord deck was soft. I repaired it with the injection method with a great deal of success. I was very happy with it. It got me through another season. But think, how much weight have you've just added to your boat? How much has your confidence decreased in your boat's ability to sail hard? (which I too love to do) How much slower are you than your H16 buddies? (due to that extra weight and confidence) How much money are you willing to put into it? (and think total cost, multiple repairs) Are you ready for a hull failure when you least expect it?
That's how I felt about my hulls every time I pressed on them and it sounded like a bag of potato chips. I think that this repair is great.... for small areas of delam. It sounds like you do not have a small area of delam.
I searced and searched, but eventually found what I was looking for..... a rock hard set of 86' hulls that were significantly lighter than my 83' hulls, before I did anything to them.
I know they are light. I know they are strong. I know I can sail my boat with confidence. It was worth it. Just be patient, look around on the web, look around at sailing clubs, look around everywhere you go. Don't be afraid to ask a potential seller if you can see the hulls and press on them. Push on every inch of each hull. You'll find what your looking for.

That's just my two cents. Sorry for the long post.