Offshoreonly.com - 28 Apache X dim

Does anyone have any info on how the 28 reacts with a raised X dim? I'm wondering if it is worth it to put on 2" shorties when I go through my drives this winter.
I find that I have usually not trimmed too much to avoid porpoising and keep hooked up in the rough. After talking with a few people I will be going to a 3 blade to help with the porpoising issue.
What are the downfalls of using a 2"shortie and if it is too much then using spacers?
Would like to know how these higher HP boats have managed also.

Thanks, Dave