Personally I would be cautious about fitting a lowering kit, purely because having experienced the benefits of jack-up kits (25mm & 50mm) in terms of more responsive handling and firmer feeling rear suspension I can only imagine that the lowering kit would have the opposite affect of slower steering and softer feeling suspension.
Regarding dropping the yokes down the fork legs (pedantic I know but you don't actually drop the forks) having experimented with this quite substantially I can say that this does help quicken the steering but 25mm is probably a little too much, I would suggest starting off at ~12mm. I would definitely recommend all Gen1 owners try this especially if you've fitted a lowering kit as it should help recover some of the responsiveness of the handling. The only exception would be if you have a 50mm jack-up kit as the additional weight on the front with the yokes dropped seems to adversely affect the steering through bends.
For those short of leg I would recommend dropping the yokes and maybe having a look at getting the seat re-profiled and only fitting a lowering kit if absolutely necessary.