What product did you use to colour it Waldo? The ` uneven` result could be something to do with what it was originally coloured with.....
I use Koleston perfect http://www.amazon.co.uk/s/ref=nb_sb_ss_i...tore%2C200
It needs to be mixed with creme peroxide --this acts as the catalyst to ` develop` the colour ... you apply it to the hair before the colour begins to appear.... and only leave in for 3 to 4 minutes [as you did] before rinsing out.
Have a look at this page on e-bay--on the left-hand margin, you can click /tick in the box which nearest matches your colour..it will then open the list of nearest-matching shades:
http://www.ebay.co.uk/sch/i.html?_from=R...on+perfect
You simply squeeze out approx. an inch-length of paste from the tube [use a glass dish as it`s easier to clean] .then pour out an equal-length of creme peroxide alongside it...mix them together into a paste --try to ensure there are no lumps i.e. try to get a smooth paste...as soon as it`s mixed, apply it to the hair.....use rubber gloves also. The over-the-counter colouring products available, such as Loreal ` Just for men` should be fine though..many guys use it successfully--am surprised you had a ` blotchy` result
I hope you can iron-out your issue, whichever way you proceed...would be interested to hear what you do/and the result.
I use the 12% Creme peroxide which is the first one on this page:
http://www.amazon.co.uk/s/ref=nb_sb_ss_c...Caps%2C121