So, I did have a VX3-L and a VX-6 at the same time and the glass improvement while noticeable between the two was marginal. At dusk tonight I compared a 3.5-10x40 VX-3i to the VX-6HD and the HD blew it away. The resolution at the same powers was not even close. Just wanted to add this for anyone looking for info, it's scarce right now. I'll be curious to see where the VX-5HD falls in that spectrum. I still think a VX-3i is incredible bang for the buck, considering I paid $315 for the 3.5-10x40 new it is wonderful.