THE 5-SECOND TRICK FOR D4

*Why "D4"?  I normally get asked,  and receives jumbled with A5 (that is a climbing grade), and D5 (which stood for "Deuce5"), two brands I have been involved with in the past.  My nickname in Yosemite was "Deucey", coined by Grant Hiskes  who mangled my Friesland ancestral title "Middendorf" to "Dusseldorf",  and Deuce4 is my present "take ca