Shane Shinwrote a review of Petzl Laser Speed Ice Screws on January 4, 2015
Familiarity: I've used it several times
I've used the BD Express extensively so I will draw comparisons with them.
Racking: These rack the same as the BD, they nest nicely together into an ice clipper.
Starting: They start quickly and well, but not a noticeable improvement over BD. I had no problems starting them easily.
Speed: The crank knob is a lot bigger than the BD but tends to fold up unintentionally if you crank it really fast. Kind of annoying but I might need to just get used to it.
Clearance: The slightly smaller hanger compared to BD means it does fit in slightly smaller spaces, but not anywhere near a Grivel 360 clearance.
Weight: These have an aluminum hanger so they are lighter than the BD screws. The "laser speed light" model with aluminum shaft is incredibly light.
Hanger: You can easily fit 3 carabiners in the hanger which is quite generously sized.
Cost: These cost the same as the BD
Strength: Probably strong enough, but I had no way to test this.
*Cleaning: I had major problems clearing the ice out of the screw when cleaning them. For half the placements the ice would not come out through normal means (tapping the head against the ice). I had to put the screws in my jacket to melt the cores out. This was with new screws on 2 different trips with 2 different conditions.
Durability: I have not had them long enough to extensively test the durability. After 2 alpine climbs the shiny finish near the teeth is visibly worn away leaving spots of dull grey metal on the shaft of the screw. Not sure if this is significant yet, but I've never had this with the BD.
Conclusion: I am not thoroughly convinced these are worse than the BD. However I am convinced these are not significantly better than the BD. The problem with clearing the ice out of the screws was fairly severe, but will require more testing to figure out why that was happening.