One thing i've learnt is that the description seems to hold more relevance in the search results than the Title or Tags. I was baffled by the weird results with my searches despite my tags. I reviews others in teh results and learn that description is where its at.
Lets use my Guy martin for example. Without Guy Martin in the DESC it was beyond anything i could be be bothered to scroll to. The results were from people called Guy or Martin, Whereas Guy Martin in teh description...Boom. #1 result.
So ive tidied up my description to subtly reiterate the title but informative. Ie if I want the watch to appeal to a biker fan base then put biker in the description.
Made a massive difference