Where do the most 'canny' among you buy your supplies of well known rust prohibitor and bike embalming potion--ACF50, I've had a look around and noticed that the 'product' is sold in containers that look 'back-street' i.e. extremely easy to replicate, you/we could could be buying any old pish (quite literaly), are there any 'authentification' (spell-check.com) marks for example, and how much do you pay?

Depending upon where you live,

Or how many people you know who want something really worth while

Give that guy a try, he lives locally to me, i got him to do my bike 4 months ago, i ride every day and to this day water and dirt are still sliding off just like the day i got it,

£60 a bike no matter the bike, well worth the cash, the guy is a gooden

If always heard its better to have it profesionally applied and sprayed on rather than buying a tin and doing it yourself. Depends where your from but if been recomemded these guys before:

I usually get my ACF50 online from Busters or something.

They typically have 2 for 1 deals.