Even if you have a pit, it’s not a bad idea to introduce the “flip” this way.
The first time I saw this done was in the 1970s. Crazy coach Dave Copeland asked me to be second spotter on the belt (a pair of blue jeans). It was at an outdoor summer camp. No pit. We RAN alongside the gymnast, spotting on the actual vault horse. Surprisingly, it worked well.
Click PLAY or watch it on YouTube.