Yesterday was my first day on the LTX 2.4m, did a 4 hour session, here's the wind gauge:
Note, this wind gauge tends to read low. There was little spray tornados flying across the river at times.

Here's the tracks from the first part of the session:

I then switched for a short go on the Pocket Rocket v1 1.9m (it did not go well).
Here's the second part of the session back on the 2.4m LTX.

After ONE session on the 3.1 (17-31 knots on the gauge) and ONE session on the 2.4 I wouldn't call it the top choice if all you want to do is DW/UW. However, after just those first sessions it's changed the way I view the parawing. This is the most user friendly sail I've had. Awesome for rapid stow/redeploy, sufficient for upwinding short distances, ideal if you are comfortable with more frequent interactions with your parawing. Biggest benefit has to be the comfort in a huge wind range without paying the hybrid/double skin penalty. Comes with the added bonus that this will be the baby step towards teaching people about double skin tech with almost zero pain in the learning process.
I never flew the Power Pack but I've been thinking this might be described as a power pack killer by someone like yourself.