Actually, if you use the search function for "Hong Kong tailors," you will find a plethora of information on itinerant Hong Kong tailors. W.W. Chan, whom I can most highly recommend based on personal experience, is the most popular and respected in the forum culture. I am confident that anything from them will be much superior to to anything from Banks, but it will also cost substantially more. Hemrajani Brothers (mytailor.com) also have a following among forum members. No other itinerant HK tailor gets any favorable mention that I am aware of among the thousands of members of these clothing fora. There is probably a message there. Well, some have to learn how to spell HonK Kong first.