Disclaimer.....the following is based on personal opinion only.......................
When your shop is putting out approx 300 cues a year you are no longer considered a "custom" cue builder but instead are in the same ranks as a few of the larger production type companies. Unless you have a group of employees working on a weekly basis to achieve that number (300 cues), 2 or even 3 people will rapidly burn out pumping out "quality" finished product in those numbers. Quality control will eventually take a hit and sales to support those numbers will have payroll difficult to make. Quality shaft wood alone, not to mention quality one of a kind pieces of exotic wood, has become more and more difficult to source and just putting any good looking piece of maple or colored wood on a cue will evenly make your product just blend in with a large group of others and cause a business stagnation.
I'm sure you're a great business person and understand the importance of a quality final product in order to achieve the mark up you desire to make your business profitable. At the numbers you are producing for the type of cue you are supplying to the end user take a quick peek and figure out if all the effort is worth the final bottom line.
Only knowing exactly what your overhead is (one very important detail) will allow you to determine the profit percentage you seek in order to make it a profitable business.
Unfortunately, for the type of cue you suggest you've completed last month, they are basically a dime a dozen type of cue. You're in a tough market for that style of player cue. Not that you can't sell that style of cue but the profit margin is going to be tough to uphold and make it worth all the time, effort and material to continue basically not working for free or for "the love of building cues."
I would suggest to focus more on special, one of a kind style of cues with only the very best woods you can cull thru and find to give you a finished product with a different appeal. However, even this market today is a very difficult and different animal that only took around 20-25 years of hard work and a plethora of setbacks over that time period to make it profitable. Your end product is the most important item in the grand scheme of things and will determine the end result of the success or failure of your business.
Determination, drive, outside support and a little luck will help. I've owned several different businesses throughout my life and can honestly say building pool cues for a profit has been the most challenging however the most rewarding in an attempt to keep the bottom line in the black.
Answering your initial question of "how" is a difficult one and I don't believe there is one single answer but a table full of possible answers.
One story about the name you wish to call your cues takes me back to my beginning days. My original idea was to name my business Precision Cue Design. It was without a shadow of a doubt( in my mind) the perfect name for everything my end product was going to stand for.
Only after deciding on the that name and having cards and banners made did I find out there was a Searing Precision Cues already out there. Trademarked or not didn't matter to me. It was too close of a match to continue using and immediately knew I had to change. Give the man before you the respect they deserve and change the name of your company to something different. Doesn't matter if it's an exact match or not. Even using my last name which I knew without a shadow of a doubt was not being used for any businesses in the United States, I still ran into some conflict and confusion with some thinking I was a different person and running a business out of FL. Evidently some people's reading comprehension may be a little skewed every now and then.