I don't know for sure that they have the best prices, but from my own experience, they both seem to do the trick. http://ww.mybadmintonstore.com (especially good prices on JPN versions) http://www.racketsportsmontreal.ca (some specials are very interesting sometimes)
mybadmintonstore is good for international buyers. prices are rather reasonable compared to local stores in places like the US and Canada.
If you google wingeesports, you will find that it is indeed a legit online store. The problem seems to be the lack of information about shipping and some people over the internet says it evens out the prices with other online stores because they charge more than what you may call "usual". Maybe if you contact them for more information...
I bought some strings from mybadmintonstore.....surprising thing is they arrived here in Ottawa, Canada in 4 days!!! And I didn't even order with express shipping, so of course shipping was free!!! bchaiyow
Well the Ti-10 is just a racket i am looking into now, but this post was just to give me a range of prices that can be found online for cheap but genuine rackets for the long run.
I've made a few purchases at wingeesports, they are selling SP racquets. Services are good, what i mean is they won't ignore customer's emails. You can contact them with any questions, they will get back to you within half the day. I've also purchased at badmintonshoponline.us. They also sell SP and JP racquets. In terms of services, they are so-so. Sometimes they get back to me within a day, sometimes it takes a few days. I now make my purchase at wingeesports for their better price and services. These are my personal experiences, hope it helps!