Continuing the talk about washers and bones bushings
A friend of mine pointed out that the height of bones is the same as the height of the stock indy bushings, so if you remove the stock washers and just put in the single bones washer on top, you're messing with the geometry of the truck. If you have the old washers from a previous set of bones you can put them in the bottom to achieve the original geometry.
The other day i saw I'd blown out one of my bottom bushings so i was swapping it out for one from another board and thought I'd try his advice. made a crazy difference. Board felt like it was on stilts at first, but could tell from the first few tricks that it has added some pop to the board, and there's more wheel clearance so less wheelbite, and generally feels more stable. The kingpin nut doesn't screw down as far anymore tho, so you sacrifice some kingpin clearance.
Now the other board has two busted bottom bushings, no washers, and feels loose AF even with the kingpin nuts screwed right down. It's lost a bunch of pop and gets more wheelbite but it's pretty fun for a cruiser.
(fyi I'm on stage xi 149 forged TI indy's on both these boards)