I bought the original version of the Speedglas, the model 9000X, about 15 years ago. During that time I've been pleased with the product and, other than batteries, I have had no problems. But the helmet was showing its age and the lens of that original 9000X was getting dark areas, so I started checking out newer AD helmets.
The best modern AD helmet I could find was the new Speedglas model 9100X. Actually, if you don't use magnifying lenses, maybe one of the larger viewing window models would be the absolute best, I wanted the standard 2x4 window.
The newer suspension or headgear on the new 9100X is more comfortable and easy to adjust.The lens is very clear and bright, and easy to adjust.
Overall, I'm very pleased with this helmet.
ProsThere is a frame installed inside to accept the standard 2x4 "cheater" lens. This is an improvement over sandwiching it behind the plastic cover plates.
ConsHardhat mounting is going to be more difficult. The standard plastic bolts that I used to mount my older 9000X model to the hardhat lugs won't fit this helmet. Instead, I need to buy a dedicated hardhat mounting kit.