Sex on SR experiences?

What are your guys experiences with sex on semen retention? Do you subscribe to the Toaist way and ejaculate a certain amount of times per month, or just never?

I more align with the Toaist style of things, not just super slow meditative tantra. Curious what you guys think about how bad it can be to never ejaculate? I've heard some teachers say it's bad to never do so if having sex.

Thanks in advance