Hava a variable as the dynamic Position Parameter using ES6 backticks

[studioalloy]

.staggerFrom(
  "#DienstWebsite #phone #phone-header-text *",
  baseTiming,
  { drawSVG: "0%" },
  0.1,
  `-=${baseTiming * 4}`, // ? culprit
)

I have the follow code which seems fine to me, but I get the following error in my console Uncaught TypeError: callback.call is not a function at TimelineLite.push... While inspecting the code and removing all these types of timing functions, the error goes away. I've also tried the non ES6 version to get a variable in the Position Parameter, but with no luck.  "'-=" + baseTiming * 4 + "'" .

 

Is this just not possible? I like my timings always to be a multiple of my base timing and having this calculated by Javascript seems like a smart plan. 

[OSUblake]

Using backticks is fine. Perhaps you meant to do staggerFromTo.

https://greensock.com/docs/v2/TimelineMax/staggerFromTo()

[studioalloy]

Fixed my on issue, while debugging more. I had copied the code form a .staggerFromTo()