Theiliste, I would read the Stereophile review of the Ypsilon and check out the measurements. I don’t know much about your Theils, but a demanding speaker does benefit from a doubling down of power down to 2 ohms. It can result in a more relaxed sound (maybe that’s less distortion created as the speaker's impedances goes low) that makes listening more enjoyable.
Of course, every system is different and the best way to decide is to listen in your home, so you’re good there. I would check out the Stereophile measurements though, and consider how this may apply to your speakers.