I wouldn't worry about waterlogging. You will find that even if you overwater, the compost will only retain so much water and the residue will drain away. A problem will only arise when the plants have a very small root system so they won't be able to cope with sitting in very wet conditions.

If the baskets have good drainage then it will just drain away, the only problem could be if the basket is of the solid type and not free draining
Not used Levington for decades but it was always top dog & I assume if it remains there it "just works"

Thanks for your replies the baskets doing well but with this compost I think if you miss watering a day or so they won't dry out as quick as some multi purpose composts, so it's a positive