When you pull up on the bar, the saddles are going lower into the body, therefore making the strings closer to the neck. You may need to adjust your trussrod. Look at the neck from one end to the other, along the side. If the neck is almost straight with just a slight bow around the 4-9 frets, it's probably okay. If there is a lot of bow so that the strings are much higher in that 4-9 fret area, then you can tighten the trussrod. But do it slowly, maybe 1/2 turn. Check the neck again...Then when it's where it looks good, let it sit overnight, check it again the next day.
Once you straighten the neck(If needed)leaving a little bit of bow, you'll probably need to raise the action again.
I don't think changing the trem would solve your problem. Anyway, the Edge or Low
pro edge won't fit on the 220B because the routing is different.
The first thing is to get that neck right. Then you can check your frets and see if maybe the 24th fret popped up or something. 3 Steps of pullup seems like a lot, and I don't know if you can have low action and get the 3 steps. How 'bout a
whammy pedal? :-) Hope this helps.
Try
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