bgs-slab-tech-evolution

name	bgs-slab-tech-evolution
description	Use when identifying a BGS slab and its sub-grade visibility/holder integrity. BGS has 4 holder generations.

BGS Slab Tech Evolution

BGS holders evolved 2002→2010→2017→2022. Current holder shows full sub-grade panel on front.

Holder generation timeline

1. Original Holder (2002-2010) — basic sub-grade display, transparent
2. 2nd Generation (2010-2017) — refined sub-grade panel
3. 3rd Generation (2017-2022) — slimmer, better corner protection
4. 4th Generation (2022+) — current, anti-counterfeit + QR code

Sub-grade panel reading

BGS slabs display 4 numerical sub-grades on the front: Centering, Corners, Edges, Surface, plus the overall grade. The overall = lowest sub-grade (rounded for 0.5 difference). A 9.5-10-9.5-10 = 9.5 overall.

Holder integrity issues

• Early BGS holders prone to micro-cracks under stress
• Slabs can yellow with UV exposure over 10+ years
• Older holders may have 'foggy' panels if humidity-stored

Reholder service available for $20-50 per slab when integrity compromised.

Where this fits in the X3 empire

Sniper recognizes BGS sub-grade panel for cross-grade EV calculations.