So I bought a used Hori EX2 for $40 and got a new one for CHristmas to have a lovely matched set.  Comparing them I noticed my used one the stick is 'loose'.  Not a lot, I didn't even go like 'Man this is broken' untill I compared it to the new in box unit.  It has a bit of free 'wobble' but doesn't touch any microswitches without resistance.  So I disasembled it to see if there was something I could tighten it.  ...And I forgot how to reassemble it and had to disassemble the second one to use as a reference for the first one. 

My results are just that the spring on the used one is a bit weaker.  It was straight forward enough to disassemble the stick and get at the spring but does anyone know how hard it'd be to replace the spring with a stiffer one?  Maybe if one of the springs gives out entirely?