HMV list release as July so 2 months after the good guys edition.
not sure if I will cancel GGE and get steely and wait but sounds odd that the SB is out 2 months later
The releases was planned at different times to each other this results in different manfacturing dates so that would result in different release dates
Universal decided on doing a steelbook after The Good Guy's Edition was decided
The Blu-ray discs are made same time but packaging type decisions can sometimes be decided at different times to each other
Some releases can be decided same time or decided later
I expect the later decision on doing a steelbook was help increase sales of the discs that was made based on existing orders done for Good Guy's Edition and Standard Amaray release
Product release dates though are always subject to change