You're right. I do this sometimes (and I think someone else likes this too; maybe it was Ken T. ?). It's just another (different) way of adding harmonic complexity to a sound. The results are somewhat different of course from the more familiar ways of doing this like AM and RM. I find that you can get some similar effects to VCO syncing.
If you're not doing this yet, you might try to tune both your input and your (VCO based) clock and use the same CV source for both your audio input VCO and your VC clock, and possibly add an EG or portamento to one of those VCOs.
JB
In a message dated 12/30/2005 6:40:23 A.M. Pacific Standard Time, pugix@... writes:
The result sounded a lot like
what you get by using an audio frequency square wave on the VC input of
a VCA. It is a ring-modulator-like product. Could be useful, but it
isn't a delay. Anyone have other thoughts on why you would clock a
sample and hold at audio frequencies?