how to resize a multi prim flexi

[Topo Nightfire]

Whats the best method of resizing a multi prim flexi without the use of a resize scrip, say to adjust the fit around waist without changing the other measurements.

[Ceera Murakami]

I just edit the individual linked prims, like any other prim. Flexi or not, there's no reason you can't move things one prim at a time to adjust the fit to exactly suit your avatar.

Personally, I detest resize scripts. They cause unnecessary lag and script load, and for an avatar whose shape isn't close to what the designer thought was 'normal', they virtually never result in a good fit. The first thing I do with resizer scripts is to delete them entirely. If the item is no-mod, and can only be adjusted with those scripts, I don't buy it in the first place. Or if I buy a 'no-mod/resizer scripts adjustments only' item by mistake, I trash it entirely and don't buy from that merchant again.

[Suella Ember]

There's a video here that might help:

Note this is using Viewer 1.23 and things are ever so slightly different in Viewer 2, but you should still be able to follow it for Viewer 2

[Rolig Loon]

Make a backup copy of your object first.  Then stand on a pose stand, so that you are immobilized, and then select the object in Edit. Click the "Edit Linked Parts" box and select just one prim to adjust (usually the largest one or one that is an obvious "anchor" like a waistband or the main prim in a belt). Unclick the "Stretch both sides" box and then select the stretch option and make your adjustments very gently, moving your camera around so that you can check your work from all angles.  Rinse and repeat until done. It's good practice and really the only way to guarantee that you have the best fit to your own shape.  No resizer script knows what your body looks like, after all.