Yep then once you've found a pair that suit you, buy another 4 pairs of the same. They will change design by the time you come to need some more and nothings worse than having to find new trainers.

I use Asics Nimbus for long runs of over 10 miles, but I find them a bit 'baggy' around the toe box.

I race and train in Nike Skylons 2007 model (light weight). It took me a few pairs to find the right ones then when the new ones came out I bought 4 pairs of the old ones

Remember they only last 500 miles then you have to bin them as the cushioning goes....