I'd start with everything at default and do a run, just to see where you are. Then (if you follow the dummies guide) setup your brightness and contrast, then finally try getting the RGBs right at 30 and 80 IRE (some recommend 90IRE). I wouldn't use the gamma controls unless you need them. Your room, screen, lamp, etc might give quite different results to mine, let alone that it is a totally different model of Panasonic PJ. Everything interacts, so you need a 'base' to start from. Also I use the 'comments' box in HFCR to put the settings used for each run, you can copy and paste from previous runs and have multiple runs open at the same time to compare BTW.
It's quite a learning process. I did lots of runs only changing one setting by a value of 1 to see what it did to the overall result. Sometimes getting 30 IRE spot on meant that 50 & 60 IRE were further out, so it might be a matter of choosing the best compromise: I managed to get my 100 IRE pretty close, but only by pulling the main contrast down a bit further than I'd had it before calibration. In practice, not many films have 100IRE scenes, so maybe I could revisit that setting and just make sure 90 IRE is good and allow (in my case) the slight drop off on blue with the increased main contrast setting, to give a slightly brighter overall picture.
EDIT: I did a run with mine in 'Normal' and found it was a long way off and not possible to get it as close as my 'Cinema 1' mode, so be prepared for a struggle. It will appear dimmer once you've balanced the RGBs, especially if you are used to seeing it in that mode (I used to use Colour 1 or Cinema 1 before the calibration).