A method for decreasing resonance in a printed circuit board uses cuts in a ground plane to slow a signal passing through the ground plane. The data packet transmission module controls the transmission time of a data packet in which the time information is transmitted via the data packet network. The headband washable cotton sleeve prevents hair entanglement, provides protection related to health and sanitary issues and also provides an aesthetically pleasing appearance. When the rotation of the grip portion is stopped in correspondence with an optimal focal location, the protrusions engage the recesses of the holder. The kickdown subassembly includes a bead and an abutment portion. A method of the invention includes detecting that a VM managed by a hypervisor of a host machine is starting a boot up process, modifying a rate of a clock of the VM to speed up the boot up process, determining that the boot up process of the VM is complete, and returning the rate of the VM clock to a normal operational rate that is slower than the rate of the VM clock during the boot up process.