Are you implying that my skill level determines whether or not what I have stated is true?
No, but it is correlated with how correct you are.
Is it not a fact that hitting off vertical center of the cue ball introduces several other factors that must be accounted for?
Depends on the shot, but generally yes.
Is it not fact that the more variables you introduce into a shot, then the more likely it is that the successful execution of said shot goes down?
I'm going to assume you meant to use the word "less" as opposed to "more" as that is what you have been arguing up until now.
No, that is not correct. Depending on what variables you introduce and how well you are able to compensate, the shot often becomes much easier depending on your goals.
Is it not fact that the more the environment has a direct affect the variables then those variables become inconsistent?
Yes, but that goes for everything, including center ball, so it is a moot point.
Are you stating that low level players that actually do want to improve do not need to master the basic shot of the cue ball with natural roll?
No, he was stating that players of similar skill to yourself cannot improve without learning how to manipulate shots beyond natural roll.
Good cue ball control is ultimately entering the shot window from the angle that allows you to stay in it the longest which improves your margin of error. So unless your spin, which introduces many inconsistent variables, is greatly increasing your entry and time in that shot window over a natural roll shot, then why even do it to begin with?
Because it often makes the shot easier to make, reduces the chance of throw and skid, allows for a more firm stroke, puts the cue ball on the correct line for position, and some more reasons that escape me at the moment.
An SL6 can most likely look at a shot and tell you pretty much exactly where the cue ball is going to go with natural rolls and the tangent line, so I would not disagree they should be fine tuning their cue ball control by learning spin more. But I would not agree with your blanket statement of spin making the game easier, especially for players that haven't mastered the basics. I will also not shy away from my statement that it should still only be used when needed because of the additional inconsistent variables it introduces.
You don't need to agree, just to realize that you are speaking to people who know far more about this game, have far more experience at it, and who have helped far more lower level players raise their game to be better than yours and still have come to the conclusion that spin makes the game easier.
Speaking of which.... there are at least 10 variables that come into play when you hit off vertical center that will vary from equipment to equipment. Please list 10 of them and explain to the stupid ones (like me) how introducing at least 10 new variables into virtually ever shot makes the game easier for players that haven't even mastered the basics of cue ball control using natural roll and the tangent line.
I'll get you started:
1.) Deflection
2.)
3.)
4.)
5.)
6.)
7.)
8.)
9.)
10.)
But what do I know, I have only been playing for 4 years and I am a lowly SL6 in a shit league (APA)?
I'm not sure why you are so afraid of these "variables" did they abuse you as a child?
A good player can easily compensate for any effects introduced by english. They are good players, not because they have some innate ability to execute these shots without knowledge of them, but because through experience and learning have overcome them and are able to compensate for them at will. The fact that you haven't learned to compensate for them beyond the level of an apa 6 just shows a lack of knowledge in that area.
Actually, the fact that you have overcomplicated things by separating it into 10 factors shows your lack of practical knowledge as well.