so basdically i would delete my weight and model and only leave the bones to be in the same location>Import new model> and adjust bone locations slightly>Then redo weighting?
1)Import the new model into the scene(Where you still have your previous rig and joints)
2) delete old mesh and weight and only leave the bones to be in the same location>Import new model> and adjust bone locations slightly>Then Geodesic voxel weighting use to skin
OR
if you want to transfer the skin weights…
refer tohttps://youtube.com/watch?v=38RNq_8Fvw4
Then delete the model after transferring weighting>And reskin the new mesh with the leftover joints from previous mesh>Done