the 1.0-1.5 had a non sprung bolt
1.0 has magnetic eye covers and a spot on the front for a Luxe emblem
1.5 eye covers upgraded to have allen screw and magnets to stay in place from of body milled differently so no front emblem, also got a new board with a stronger eye plug in.
2.0 new eye covers with a latch and magnet system, sprung bolt new board with a USB cable to program your own sounds during start up, milling same as 1.5 for body
all luxes shoot similar your best bet is to get a 2.0 its the newest wit the 2.0 core and board along with a ton of color options. you can upgrade either your 1.0 or 1.5 as you please but seeing you live in Cali you may not even need a sprung bolt. the stock unsprung core will work perfectly fine. as for a pooty core, while he makes a great product i would personally suggest sticking with what DLX has made and either find a luxe with a 2.0 core or buy one if you really want a sprung bolt.