Andrew, I use that mix quite a lot on my prebaiting, it's so easy to make an enormous batch and freeze down 200 balls.
Earlier this year I pre-baited a swim at Throop on the Dorset Stour for 5 evenings and had the chub attacking the balls as they were sinking through the water.
Unfortunately when I went the next morning to fish it, someone else was already in the swim, one of the many pitfalls of pre-baiting, I wouldn't have minded too much if he had caught a load, but a bright red jacket and sat right over the fish meant he had only had one chub.
It really is a very cheap way to almost guarentee fish, if applied correctly.
25kg Haiths Red Band pidgeon conditioner = ?15
25kg trout pellets = ?14
15kg Vitalin = ?7
You'll probably get through 4 sacks of Vitalin to use up the Red Band and TP's
So for ?57 you get 110 kilos of dry bait, making about 200 kilos of prepared feed.
Sounds like a bargain to me.
(Oh yeah, it works quite well too)