I've just bought the pistol PE PA's 3 and 4.
And, ok.. they're ugly. but damn useful.
After a few tweaks, I can now wear the PA4, cap my lib damage, cast holy damage boost and drive my HA Trike!
But, as I only have 95 dex, I need to drug up to 'kick start' the PA4. After that the +5 dex keeps me up to the 100 dex req.
PA3 isn't a problem.
PE's now have a real PA.. and it kicks some serious drom arse!