Have a look at the link Regal posted, it explains it better than I can, and is written by a frame builder to boot.
And I'm sorry to say TM, but if the two forks had the same axle to crown length, it is impossible for the shorter rake fork to have been twitchier/faster unless it was also more flexible, and that was the flex that made it feel "twitchier".
I've read papers, interviews, and advice from frame builders and other knowledgeable bods and they all agree, less trail = faster handling, and less rake = more trail, not less.
Have a look at the link Regal posted, it explains it better than I can, and is written by a frame builder to boot.
And I'm sorry to say TM, but if the two forks had the same axle to crown length, it is impossible for the shorter rake fork to have been twitchier/faster unless it was also more flexible, and that was the flex that made it feel "twitchier".
I've read papers, interviews, and advice from frame builders and other knowledgeable bods and they all agree, less trail = faster handling, and less rake = more trail, not less.