Here is some more background on this crew and how I modified them as well as the stock Heng long commander.
First the resin figures come with 4 upper half and one set of legs. I used a razor saw and cut all the torso's just below the belt line. This allowed them all to share the same pair of pants

I then added a small metal nut to all the top halves, by drilling a hole and setting in the nut.
The legs have a powerful magnet countersunk into the waist.
This set up allows me to pose these figures with a little more variety.
You can also see how I have added different heads to the Heng Long commanders to give some variety to my crew. One of them has had his torso cut just at the pec level. He sits in my the PZIII with the DBU built into the cupola.
Hmmmm. Looking at the pictures it seems I need to trim a couple of torso's down some more. I couple of guys are looking pretty long when matched with the legs.
Also, I tried to capture goggle lines on a couple of them., where their faces have been tanned except for where the goggles ride.