Skeletons, too tight? How much force can you apply?

[Grubhed]

I have a doll that is less than a month old. So all of her joints are still very tight. I have some experience posing my dolls, but am far from an expert and very nervous when applying pressure. Almost all of her joints I have successfully repositioned with no problems. However I recently noticed she wasn't sitting straight, leaning to the side. I found a photo of the skeleton used by SMDolls which is her manufacturer and confirmed there is a joint there.

Skeleton.jpg (528.72 KiB) Viewed 661 times

However it resists movement and I'm afraid to place too much pressure and possibly breaking one of her welds. There is a lot going on in this area. Structure is questionable. Any suggestions on placement/positioning, pressure points?
Grubhed

[Booty Call Dolls]

Perhaps you can let mother nature and gravity due her thing.
Some people have put the dolls on their knee..
In your case, she would have to be on her side.

[Anung Un Rama]

OK Grubs, be cautious with the SM spine articulation.

So what has happened, I believe is the joint has rotated slightly out of proper alignment, so this will involve laying her on her back and gently manipulating the shoulder and hips in gentle opposing directions (only small movements).

If you can rig some pillows to put under her tummy to protect her can s from compression, then do this with her lying on her front with back up, so you can feel the joint, and for pressure points, the ideal area for the hips would be the top of the inverted U section (or n section) as this will limit excessive leverage force, but apply any small pressure, while the other hand is feeling for the spine uni joint position.

The other possibility is the fastener has come lose that has shifted the joint out of position so light pressure jiggling on the nominated pressure point, while feeling the spine joint, should give any indication of excess play and joint shift.

Anung