The cue I tested was 11.7mm at the tip, too small for me which made it feel a little weak for 'my' game.
I've been playing with 12mm for 3C for 50 years!
Both are important to develop into a 'Complete 3C' player!
Where I disagree is in the 'Order' taught or learned by a 'Beginner'!
Without having a 'Correct/Consistent' stroke first, any system will be flawed from the git go!
I've instructed over 350 students since 87, some have asked, "When...
Obviously, You don't know too much about the History of the progression of the 'Small games to 3C' in the US from the 1900's-40's!
In 63 I started with 'Straight rail' then on to 18.2 Balkline for about 2-21/2 years with some 3C mixed in! Practicing 4-5 hrs. a day.
I was taught by Men who...
I said small tables used to play the 'Small' games on 8' and 9' tables is easier and good to practice on first.
Top 3c players going from 10'-9' tables, series of, 7, 8 and 9's are common place!
From the 1920-1960, 98% of European players of could not avg 1.00! In the US the Top 7-10 players did average 1.0 or better.
During the 60's and 70's 3C had a lull in the game in the US.
DP didn't avg 0.700 in 68, maybe later in the late 80's, early 90's.
I proposed this notion 40 years ago!
A Top player knows how to divide the table into 'Sections' without diamonds!
The weaker players depend much more on 'Systematic' info more than Pro's.
Look up whatever 'Drills 17-year-old Felix Vogel practiced!
He's the Only Pool player in Decades I've seen having a 'Perfect' Stroke!
Compact, Efficient, Straight delivery!