I want to clarify this, because I don't want anyone else to think they should take 60% dilution before they take their real first equity round. Without revealing our entire cap table and terms (I'm transparent as I can be, but I think this would upset some of my investors) I can tell you the rule of thumb is to give up no more than 25% dilution on convertible notes before an equity round.
Generally you will sell 20% of the company in the Series A (read as: first equity round), 15% in the 2nd (Series B), another 15% in the 3rd (Series C). Our dilution position from these early rounds is still slightly TBD depending on the valuation we get in our next round, but we are sticking pretty close to this rule. Additionally, we maybe we able to hit the milestones required to sell less than 20%... so that optionality is there.