<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Dan, what is the double-counting issue?<div class="">I understand that the control variables in bulk formulae configurations will be linearly dependent.</div><div class="">This is also true to some extent for flux-forced configurations.</div><div class="">That does not mean that the adjoint optimization method will double count though.</div><div class="">What am I am missing?</div><div class=""><br class=""></div><div class="">Dimitris<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Mar 31, 2020, at 6:50 AM, Jones, Dan <<a href="mailto:dannes@bas.ac.uk" class="">dannes@bas.ac.uk</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">However, if we use the bulk formulae, there is a risk of double-counting (as pointed out by Yavor Kostov).</span></div></blockquote></div><br class=""></div></body></html>