diff --git a/hwe/j_get_select_npc_token.php b/hwe/j_get_select_npc_token.php
index 613eff5d..93de3b31 100644
--- a/hwe/j_get_select_npc_token.php
+++ b/hwe/j_get_select_npc_token.php
@@ -119,7 +119,7 @@ while(count($pickResult) < $pickLimit){
 $newNonce = mt_rand(0, 0xfffffff);
 
 $validSecond = max(VALID_SECOND, $turnterm*40);
-$pickMoreSecond = max(PICK_MORE_SECOND, $turnterm*10);
+$pickMoreSecond = max(PICK_MORE_SECOND, Util::round(pow($turnterm, 0.672)*8));
 
 $validUntil = $oNow->add(new \DateInterval(sprintf('PT%dS', $validSecond)));
 $pickMoreFrom = $oNow->add(new \DateInterval(sprintf('PT%dS', $pickMoreSecond)));