SUM (old version) hum workaround

I have an "old" version of SUM which serves me well enough, but does suffer from a bit of noise on the headphone output,. I didn't build it, by the way.

The github folder (https://github.com/Laminim/EURORACK/tree/master/SUM) for this version includes a workaround for the noise, which is simply soldering a couple of caps across a couple of components,

The workaround pdf suggests the use of tantalum caps, which are polarised.

(I was going to attach the pdf but I don't seem to be able to publish this post with it attached)

I think that for the cap across pins 7 & 4 of IC8 should be +ve to pin 4, -ve to pin 7

For the cap between pin 7 of IC7 and +ve of C62, +ve should goto pin 7 and -ve to the +ve pin of C62.

Please excuse me if II'm wildly off here but my brain has turned to custard as I've manage to pick up a dose of c19 this week.

I'm hoping someone can confirm the correct orientation.

thanks very much in advance for any assistance