What do you guy's think, do you think that my oil would be fine or, should I wait until I have a batch just used for bhajis only?
Ray 
It's the chip oil that makes the BIG difference
It gives that wonderful subtle flavour
You need a lots and lots of chips put through the oil
If it's had fried chicken cooked in it, then it's even better
You would have thought (like I did) that bhajee and samosa oil would do the trick
But it doesn't
It give an extra something, and improves the base
But it's not what you're after
I have seen this done at takeaway kitchens, this is
not just speculation
It's also my brick wall, because I can't reproduce this oil