We are Oregon's first Railhammer dealer and they are showing up today. They make a few different models and we will have most of them installed on guitars so you can hear them before you buy. They fit a standard humbucker cavity and are voiced either as humbuckers or as P90s but they are all dual-coil designs. The rails under the low strings focuses bottom end and gives more usable bass. Railhammers work great for drop tuned or baritone guitars as well since they never sound muddy even with the gain and bass cranked. The oversized pole pieces under the high strings keep them from sounding thin and the balance between strings is incredible. The models vary from P90 crunch to modern metal attack to warm and vintage.