Built to Lock In. Balanced by Design.
 
Our COG Flip Neck Conversion is designed to intersect the putter’s true center of gravity and create a stroke that naturally stays square through impact. By flipping a left-hand plumber’s neck into a right-hand setup (of vice versa). We align the face, lie, and weight distribution in a way that delivers a straight-back, straight-through roll without forced timing.
 
Ideal for players who want a more automatic stroke, this setup reduces/eliminates torque and over-rotation – perfect for those who leave the face open or over-close at impact.
 
Finished in our Anti-Glare Tour Finish and welded by Rush Kane, this mod delivers both precision and playability worthy of a tour build.
 
 
WHAT’S INCLUDED
 
Plumber’s Neck:
4” Length (length adjusted for final lie/balance)
.370” Tip Diameter
304L Stainless Steel
 
Prep & Cleaning Included ($150 without neck conversion)
 
Finish Included:
 
Visible weld on neck
Anti-Glare Tour Finish
 
Paint Fills:
 
Standard (Black – face/alignment) → Included
Custom Candy (Any Color, Full Putter) → $100+ 
(depending on qty of stamping/colors)
 
**All paint is removed in prep (excluding inserts)
 
 
COMPATIBILITY
 
Check out our Putter Compatibility Page before placing an order. 

We do not accept black PVD (all synthetic coatings), nickel plated, or aluminum body putters. If your putter is carbon steel, it will require a finish. 
 
 
If your putter has a face insert, the required work is $150:
removal
cleaning
re-assembly
sealant (white or black elastomer available)
 
 
TURNAROUND TIME
 
Check this page for current lead times.
 
We work with Head Only (no shaft) for mail-in putters. See shaft removal for guidance. 
 
 
WHY COG-Balance MATTERS
 
Most players think they need face balance – what they really need is true center-of-gravity alignment.
 
When the hosel is flipped and positioned to the CG, the putter naturally squares to the target without manipulation. The result?

✅ Straighter path control
✅ Consistent energy transfer
✅ More predictable roll
 
Perfect for:
Straight-back, straight-through strokes
Players seeking less face rotation & more stability
Those who prefer visual linearity at address
 
Rush Kane is one of the few builders who offers this level of balance customization through hosel geometry.
 
With our Signature Plumber’s Neck, you’re not locked into a fixed design – this mod is fitted to your stroke, your stance, your goal.
 
Want help dialing in your ideal setup? Apply for a custom build.