The cable is an interesting one
Base fundamentals are strong for both the GBP and the USD so I wouldn't trade the pair...
...instead id be looking to buy into the GBPAUD if we get some good GDP readings tomorrow... i.e. if they are good figures then the GBP should move more against the AUD than it will the USD, - simply because the AUD is weak, whereas the USD, being fundamentally strong could stand up to the GBP more.
Thats my 2 cents anyway :)
Have a great week all.
HOLY GRAIL: Fundamental Analysis to chose your pairs/direction, Technical Entry/SL/TP for consistent Management of those decisions