Hello. I am trying to get the action on a warwick thumb bolt on 4 low to my liking. I followed the warwick set up videos on youtube and read all the manuals. But even with the bridge & saddles slammed, just-a-nut slammed, neck straight, the action is still too high for me, especially compared to my other basses. Also, the truss rod seems to be of very little use if I tighten or loosen it. Luckily the neck is a bit straight with very little relief. Are all warwicks meant to be set-up with medium-high action? We tried adjusting a friend's Fortress and it came out with the same medium-high action after slamming everything to the max.