^^^^ THIS and 14 or 15" old tire sidewall deflection on the rim.Sometimes I wonder if people confuse slop for a slow:1 steering ratio
The BEST test. Jack both front tires up, grab the outer of one of the tires and watch the steering wheel. Twist the tire watch the wheel. It should be instant and dramatic. You'll be amazed at the ratio multiplication.
If not, have someone hold the s/wheel firm and it should be easy to pinpoint the fault.