No particular reason kev 'cept habit brought upon by successes in using them.Inclined to think that's something that might only apply to where you're fishing and the given conditions.
Would you think any one colour is likely to be best everywhere?
I often buy red maggot because bronze dyes these days can be weak and pallid and the maggots seem to shrink a bit when treated.
I like whites with turmeric on the rivers but I don't want yellow fingers for the next few days.
T?
My own feeling was to perhaps try a very bright colour, the logic being that a fish with good eyesight like a Roach might find it before a feeder who relies more on smell....so trying to be a little selective. ...although it would probably make little difference in practice.
He worked for a tackle shop in Leigh and had grabbed a pint of white and just a small handful of red and had to root for them in his bait box. He caught immediately and had 3 whilst I was there.
Obviously I could not rule out a passing shoal coinciding with the change of colour. Given the other anglers lack of luck I had started with bread flake and gone down the obvious double maggot, single maggot route before trying the rogue red ones. Having a few alternative colours is a good idea.I think we often have similar experiences, Clive (but not always so dramatic and successful), but maybe not always with the same colour change. After all, it's fairly standard advice, if things aren't going well, to ring the changes with whatever colour maggots you have, and with the number on the hook, too.
They're not roach, I know, but I always prefer red maggots and red baits for tench, and I've found two fluoro pinkies go down well with small ones.