I am seriously considering buying the LC-1 setup with the DB digital gauge. Any downfalls to this combo over the sweep style G2 or G3 gauge? Also the XD-16 has a few more options on the gauge face, is this really necessary ( worth the extra $110) if you can download/data log on a laptop? Any horror or love stories with this setup? Don't want to burn up my motor through trial and error, especially with the destructive lung mounted on top, so is this really as valuable and worthwhile of an investment as I think it is?