Not that there's anything wrong with that.
I love me some bass, too. But Dave's got bass on the brain. His flies are clearly meant to incite ... to irk. Bass are easily excited, and Dave's flies seem to do the trick well enough.
I also think Dave's compensating--his job title is "systems administrator." For what little excitement that title inspires (and I'm just guessing--it could be the best job out there, save for the wardrobe manager at the Ba-da-bing!), it would seem Dave does his best to make up for it at the vise. He's an artist, really. A fly tying visionary.
Get to know Dave a bit, and if you ever need a killer smallie fly, you know where to go. On with the questions.