Simon - I think that you're being a bit depressive?
At 7:7:7, Growmore is not, I believe, likely to cause 'a rush of blood to the head'. Although we always use BF&B, I think that much can be said for the big G.
"Growmore is one of the most useful fertilisers you can have in the garden shed, because it is what is known as a balanced fertiliser. This means that it contains equal levels of the three most important plant nutrients, nitrogen, phosphorous and potassium. Because the contents are not skewed in any way it means that it can be used to provide a basic feed for all your garden plants. It's a good way to ensure that they have a general source of food that can then be built upon to suit the individual plants. So if you want to ensure that your trees, shrubs, beds and borders have a staple diet at the start of the season, you can't go wrong with Growmore. Apply it as a top dressing around the garden and let the weather do the rest. It is also a very useful granular fertiliser for using under mulches to ensure that as the mulch breaks down the microbes involved in the decomposition have sufficient fuel for this process and do not take nitrogen from the soil, depriving your plants of vital nutrients".