I carry a 1911 in a shoulder holster and a G30 IWB just behind my right hip. That's my standard carry -- the only difference is my riding jacket (as opposed to another type) provides the needed concealment. As for shooting them, I've concluded that trying to do so while riding would be foolhardy. Imagine trying to work the clutch or grab the left handgrip while holding a firearm, or having to drop it in order to do those things. If the need arises, I intend to stop ASAP, get off the bike, and then address the problem. With any luck, it will be a "distant" memory by then.