I’d like to reproduce the attached synth sample using one of the synths on the Play+. I’m looking for some guidance on a) which synth engine b) what parameters to mess with.
I feel like the sound is somewhere between ACD > Hexagon and ACD > Subjune, so that engine feels right.
If anyone has some golden ears and some wisdom to guide me, I’d appreciate it 
Sounds like a saw wave with a envelope opening the filter and an LFO also modulating the filter.
So the LFO is going pretty fast, giving it 1 wobblly sound, triangle or sine wave LFO modulating at about 10-20%, then the filter sounds like it might be a negative envelope, so opening up the filter in the patch and then adding env amount in negative values to start, set the envelope with a long attack, like .7s, some decay and maybe no sustain, play around with the LFO speed, env amount, filter position.
Might get better results with a LPF and a postive envelope.
There’s also some chorusing going on i’d say.
But else i think @Mitch is pretty spot on!
This is amazing. Thank you both! Can I ask how you developed an ear for this? Lots of knob tweaking and observing the result, or is there a fundamentals class I missed out on???
If there is a fundamentals class, i’ve missed it (let me know where to sign up) 
I think for the most part it’s trial/error and practice with your fingers and ears.
Eventually you’ll develop the ear to hear out modulations / envelope curves of filters and the different waveforms become pretty obvious.
Depends on the complexity of the sound of course. 
Spent hours and hours tweaking sounds on everything from DAWs to guitar pedals to hardware synths. Well my hobby is also my day job so that helps.
Actually I did take some classes, I would say Mr. Bills ableton class is super helpful for learning Ableton AND sound design, as well as Ill Gates producer dojo, which is packed with tons of info. They are both good people too!
Lots of free info on YouTube but a lot of it is B.S. I mean old Venus Theory, Seemless R. patch videos are good but I don’t know what the kids are doing now. Look up “how to make music like X” is sometimes fun cause then they are making music you want to hear (maybe).
Right, sounds like stereo chorus, since there isn’t a chorus, a saw from FAT might work better with a little of the detuning option, or there is some kind of chorusy option on FAT if it isnt called detune.