[David Rosenthal]

Pedro,

Wow. That description of the poem is almost enough -- who needs the actual sonnet? But seriously, if you were really able to pull all that off, who cares if it's in dodecameter.

But to answer the general question, I tend to have trouble reading lines longer than pentameter. I have always considered it a personal flaw. Sometimes I can read hendecs, but I usually turn them into loose iambics in my mind. I have the same problem in free verse too -- long lines are almost more difficult for me than long poems. Oddly though, Spanish hendecs don't bother me in the same way.

Which, I suppose, is to say if everyone were me, heptameter wouldn't be a good idea. But lucky for you, most people are not me.

On the other hand, I actually think décimas work best in tri or tet, but if you can compress all of what you described into a pent décima, with that killer rhyme scheme, I say go for it.

David R.