movement holders with support for jewels question

I am currently looking into picking up a movement holder for the 7750 series movements and there are a lot of options at a lot of price points.

My question is with regards to the holders that have supports for jewels optional.

I see a lot of advice saying to make sure to support the jewel for the seconds pinion/wheel while pressing on hands, however I have almost always found that said jewels are behind the automatic works when its time to press on the hands.

With that in mind, am I installing the automatic module too early? should I have left the automatic module off and installed the dial and hands, and then cased the movement before installing the automatic module?

Have I completely missed the point?

An additional question, would I be able to get away with just using the bergeon 4040 movement holder for the time being? or if I wish to tackle a 7750 getting at least the basic plastic with some pushers 7750 specific holder is a mminimum?

ah, so in order to test the chronograph operation, you might put on some hands before the dial, so those supports would come into play?

I have found chinese clones of the horia holder, though they are still decently expensive, so not sure if i will pull the trigger on one, was thinking perhaps its still better to get one of the cheaper ones first and then save for the horia.

I have one of the cheap(ish) chinese ones. It's ok to be honest but not as good a quality as the much more expensive swiss models. But as a hobbyist it's fine for me.

By the way, has anyone seen a movement holder for a 7733? Or a Landeron 248? (Which would maybe fit a L48 too but I'd need to check). I've done just a couple of these and without a correct movement holder it's much more fiddly. I've done some looking but best I found was an old thread somewhere with a long dead link to someone who 3D printed a 7733 holder.