A pressure difference rearward of a windshield is efficiently corrected in a windshield unit for a saddle-ride type vehicle provided with two types of air ducts for directing the air flow from the front of the vehicle to the upside of the vehicle and to the rear of the windshield. The method includes performing a data-packet-inspection process on at least a portion of the flow and applying a network policy to a specific wireless telecommunications area based on the results of the inspection. The adjustment member is separable from the frame of the bow sight without affecting the position of the aiming point on the bow sight. A first tubular member is operatively connected at a first end to an aperture in the wall, and a second end extending outwardly for receiving condensate water from the condensate tray. Other embodiments are also described. The controller can also sense if the brush chipper has not been used for a predetermined period of time and automatically reduce the idle speed of the engine until the brush chipper is used again, and then automatically return the engine to a normal idle speed before the feed rollers will pull brush into the brush chipper.