Minions pay for the "Custom" name. Thats how they stay in business.
The only thing you get with a "custom" cue is a custom high priced custom "paint job."
A "custom" cue won't make you play any better. Chrome don't get ya home.
How many "crooked" cue shafts have you purchased/played with?
Please tell us who made it? Enquiring minds want to know.
You can usually find at least a handful of "straight" house cues in most places.
At the end of the day...it's ALWAYS the Wizard, not the Wand. Maybe you should try one of those shaft's made form vintage bowling alley wood?
Practice, Practice, Practice is always the answer.