The VX-III 1.75-6x32 scope had a very short thin reticle portion compared to the VX-III 1.5-5x20 or even the FX-III 6x42 scopes. In fact, there is almost no thin portion at all in the 1.75-6x scopes. I recently sent a scope back for the heavy reticle and it had the wider reticle installed, which I think I prefer.
I hope the pics show the difference. Here is the 6x42 showing the wider separation of the heavy lines.
Here is the 1.75-6x32 reticle. The heavy lines almost touch at the center of the reticle.