Yes, I've converted the paraliminals to wav-files. There's too much degrading with mp3s. But to ensure less overwhelm I only use dive infront and not the whole session. It grew out of a time when I didn't want to use holosync at all. Although I've heard from Margaret which is and old-timer on this forum that she puts a paraliminal after her holosync-session. It works extremely well for here. She's a big fan of Personal Genius.
I think the overwhelm is mainly an issue of delta-entrainment or whatever it's called. Sticking a paraliminal after it shouldn't add to it. But then again, everyone is different.
Tore