Thu, 10 Jun 2021 10:53:43 -0700 Martin von Zweigbergk amend: work mostly with str-type **opts for simplicity
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip