I currently have a bass set up with a Roland GK-3B pickup that I use for outputting to a Roland GR-55 and also some synth modules. This set-up works decently, but not perfectly for midi output. There are issues with latency in the lower note ranges, and also some lesser issues with harmonics and sympathetic string vibrations being picked up as notes and triggering sounds (I know, I know, work on muting technique, but I'm not perfect). So, I'm considering one of 2 things. One option I was thinking of, is having one of my basses modified with a FretTrax system. The other is purchasing a Wilcox Lightwave HexFX bass. I'm hoping for some input from people who have one or other of these. Technology-wise I think the FretTrax it is the best solution, but there are a couple of drawbacks. First is that there is physical modifications involving cutting and drilling that are necessary to install it, and that's something I'm leery of doing on my high end very expensive bass. Secondly, the cost of the mod is actually more than the cost of buying a new HexFX bass. The HexFx SEEMS like a good solution and is more economical, but the technology is based on reading an actual sound, instead of the more sophisticated tech of reading a signal directly from the fret like the FretTrax does. The FretTax system has the added advantage that it does not actually read open strings, thus eliminating any unwanted accidental note triggering from string vibration or harmonics. I'm hoping someone on here has a HexFX bass they are willing to share their experience about, particularly with regard to latency. I want the midi triggering to be lag free. Thanks.