I'm getting ready to do the same spring swap, and have the same shocks/struts on my 00 GT Vert. Probably be doing it towards the end of the week. I'll let you know how it rides once I get it done if you haven't already done the swap yourself.
Are you planning on using the iso's or not? I'm not running rear iso's now, but do have the in the front (I'm using 01 bullit springs on front, I think bullitt rears on the back, couldn't find the exact rear spring code online anywhere). Right now I'm planning on using the front iso's, and at least the larger rear iso, although MAY end up skipping the front isos and just insulating the metal on metal contact with a piece of bike tire tube depending on how the drop goes..
I plan on replacing my shocks/struts with either Strange Engineering adjustables all around, or KYB adjustables. I don't want 'bouncy', but I don't want log-wagon either, lol.
**EDIT** Just noticed you said you ALREADY did the swap, lol. How old are your KYB's you have now? Mine have less than 5k on them, so are practically new, hopefully won't be too bouncy...