Again, we are seeking truth together. It not about scoring points. Thanks for sticking with this.

| I won't go down this point by point, but I stand corrected,  however you left out an important part of the quote:

Yes I did. But the topic was the thought that HP's are expected to ride poor. (Has your thinking changed on this?) So the quote was about addressing those raised issues. And I learned a bit more about HP's from other readers from talking about it. So thank you twice.

If we want to make your boat ride better then all of the things should be included.

I would like to note that all of the things in your your extended quote are secondary to length being the first order variable for ride quality. So I, who know nothing, encourage you to do that first.

Beyond the first order variables, all I can do is smile and nod, mostly. I have not the depth of expertise to understand the effects of the proposed changes to another designers hulls welded to another designers bridge deck with a relocated mast. I do agree the changes seem wise to do to, given your constraint.

|     What does "finer" mean?   How much finer?

I interpret that to mean, given two sterns, the finer one is better.  So as fine as possible, but no more than that.

|  I am not even remotely considering dropping my size constraint, so we must work within this constraint.  

I have no interest in you dropping it. But I will find it interesting when you do.

| One can only compress the interior space so much without the result being cramped.

Do you have a defined criteria for interior space?

When I did the math (costs), it seemed to me that a hull that added to my interior volume was too expensive for me. It was much cheaper to increase the bridge deck and make the hulls finer, longer, lighter, and farther apart.. I could still use these now skinny hulls for storage.

| In lieu of increasing length to achieve this space, which is entirely off the table for me, if not for you, the alternative would seem to be moving the center of buoyancy forward.

I think this is true for the cats you are looking at, because they have too much aft buoyancy. I don't think that it is true from a blank sheet 'properties of boats' point of view.

|   The ideal compromise

This phrase made me laugh.

| You can't cram everything you want into a 28' hull without making some design compromises.

I am looking at a 40' hull, and still need compromise.

| Without building models and tank testing one would not know how much difference such things would make.

I imagine there are quite a few who know exactly what difference these changes would make. They are not me.

| but let's stick to the length constraint you hate so much.

I don't hate it. It your length constraint now. Ya, we dated a bit, but we have both moved on. We see other people.

| The challenge every designer is faced with is to work within limits.

What I love about Rob is that the only constraint he cares about, after safety, is dollars. Even his safety is cheap. Free sheet dumps for everyone!