Hey Chief, I've been continuing on with (the latest) .exe Arrange and I'm on my way to Corel from Costa Del Sol now.
JENOVA Vector was a lot of fun. I used Aeristh and Barret with Cloud for the fight. Barret building attack+ stacks with Cannon Ball in front row, and Cover, Aeristh alternating between Quake and heals, and Cloud on (Haste/Potion/Attack) support duty. Kept the damage flowing steady with about 400-700 damage per turn, depending on how much we needed recovery. Had a couple of KOs but nothing overwhelming- constant pressure.
Her spawning attack didn't seem to work though... she started the battle with some recovery attack, but no other enemies appeared. There was no sign of anything spawning for the rest of the battle, either, even though I wasn't very speedy. Was this changed from previous versions?
The other thing I just noticed was a battle near the Corel Reactor (2 Bloatfloats and Bagnadrana in the middle, back) seems to have the enemy rows backwards from the way they appear- the two Bloatfloats are (Back Row) even though they seem to be in front. I just wanted to mention now before I forget!
EDIT: I also really like the rain effect, but I've just noticed it carries over into the Rank Up screen with Mr Smile (at least on the Corel rollercoaster save point). Not the worst thing ever, but I don't reckon it would be too hard to change... would it? :S
I was wondering if you could make it rain in battles, too, or whether that was just in the flashback battle background (is it even raining then? Am I imagining? I don't know!) rather than an overlay.
EDIT 2: Barret and Yuffie is the perfect team for snatching baby chocobo treasure! There's absolutely zero remorse in this party! :L