The article you're looking for is on page 6 here in the PSE TAC 15
/15i section and is also in the Articles section, July 2011, HHA Optimizer Speed Dial Set-up and Review by jon.henry755.
You might want to review the TAC 15
/15i Basic Unpublished Information on page 7 and also PSE TAC 15/15i-Installing a Timney Trigger System on page 8; both articles also written by jon.henry755.
Let us know if you need more info.