The present invention includes, but is not limited to, a method, system and computer-usable medium for providing automated management of threshold crossing alarms. The golf club head preferably has a volume ranging from 420 cubic centimeters to 470 cubic centimeters. When a host command is received, the command size is compared to a threshold in order to allocate a cache segment from a first segment pool or a second segment pool. The second portion is designed to contact the midsole in a compressed state and form a gap between when a load is removed. The motor cover 11 has a yoke section 21 and a flange section 22 which is disposed at one end of the yoke section 21 and fixed to the column at a plurality of positions The yoke section 21 has at least one rib 50A provided on an exterior surface located between positions where the flange section 22 is fixed to the column.