Madbean Sharkfin - Tone Suck in Sample/Hold Mode?

[natron_mn]

Posted this on the Madbean forum, but it's pretty quiet over there.

I recently finished my Sharkfin build, and I'm loving it. I noticed a couple of things when in sample/hold mode, though, and I'm wondering if anyone has had the same results.

First, there seems to be a tone suck. Maybe putting a boost or tone shaping pedal before hand might help?

Second, there seems to be some harshness to the peaks of the wave. I'll try to post a clip to provide more context.

Not sure if these things are the nature of the Maestro FSH circuit, or if I have done something wrong with my build.