Black tie question on jacket/vest

[GFB]

So before I knew better years ago I purchased a notch lapel jacket and soon plan on upgrading to a peak lapel jacket, just looks a little more formal.

With that, I am debating dropping the cummerbund and instead going with a waistcoat/vest. So far the only lower-cut vests I have found all have shawl lapels.

For anymore with more expertise than I have, is it acceptable to wear a shawl collar waistcoat with a peak lapel jacket? I'm a little fuzzy on the rules regarding the pairing of these two articles of clothing for black tie events.

 

[classicalthunde]

It is...actually, I believe it is preferred if your vest is going to have lapels at all

This Richard Anderson tux for Simon Crompton has peak lapels on jacket and shawl lapels on low cut vest: https://www.permanentstyle.com/2018/05/richard-anderson-tuxedo-style-breakdown.html

also, Budd's in London doesnt carry anything other than shawl lapel vests, and they are a pretty traditional shop

 

[GFB]

Appreciate the insight!