What did I do wrong?

[clough42]

Wish there was a way to adjust it without it changing so drastic. Any upgrade or anything I can do to get the bed up or the head down like just a tiny big? Any tricks?

If you've got the i3v (the one with the head-scratcher Z limit design) I've got you covered. Here's one that uses a screw to adjust: http://www.thingiverse.com/thing:336665

Or if you want, you can use a micrometer barrel: http://www.thingiverse.com/thing:356819

Or you can go with Roxy's suggestion and use auto-bed leveling. Here's my interpretation: http://www.thingiverse.com/thing:335632

I'm in the auto bed leveling camp. If you use my probe design, you will definitely need to deal with getting the printer to raise the Z axis before retracting the probe so it doesn't strike the bed. I hacked the firmware myself, but it looks like Roxy has a thread with code changes that do something similar.