and second end 328 a 5 of lever 328 a 3 is configured to selectively engage vdn 127 as seen in fig7 a slider 328 a may include a biasing member in the form of a coil or constant force spring 329 a or as seen in fig7 b slider 328 a may include a biasing member in the form of a tensile spring 329 b or as seen in fig7 c slider 328 a may include a biasing member in the form of a compression spring 329 c biasing members 329 a 329 c are each configured or arranged so as to maintain first end 328 a 4 of lever 328 a 3 in contact with or in engagement with detents or tactile features 131 formed in housing 102 of electrosurgical pencil 100 and to maintain second end 328 a 5 of lever 328 a 3 in engagement with vdn 127 biasing members 329 a 329 c may be secured to and extend between a suitable location on lever 328 a 3 and a suitable location on body portion 328 a 1 in use as slider 328 a is moved distally and proximally relative to housing 102 of electrosurgical pencil 100 first end 328 a 4 of lever 328 a 3 inter engages with detents or tactile features 131 formed in housing 102 of electrosurgical pencil 100 to thereby provide a degree of tactile feedback to the user of electrosurgical pencil 100 while second end 328 a 5 of lever 328 a 3 moves along vdn 127 thereby affecting vdn 127 in particular as first end 328 a 4 of lever 328 a 3 moves from one detent or tactile features 131 to an.