Thanks blokes
I realise I don't need to have the lube groves all coated for it to work so its really just a cosmetic issue not a performance problem but I would like to sort it if I can.
Already using 5-1-7 so I might try 5-1-10 use the same volume of mixed product and see what happens. Interestingly I have used 3 coats of the gold metallic and copper bronze without issues so for me it is only with the blue green it is happening.
Worst case I just stick with the 2 coats and keep the 20% that don't end up with total coverage for my own use.