Re: Who else plays old clubs?
I'm still using the custom-built clubs I had made in 1984, including persimmon woods (made of real wood), and cavity-back irons. Exceptions are a graphite (head) driver circa 1991, and a new two-ball style putter.
I'll have to agree with Zakko that I have a lot of trouble on modern courses. What with all the new technology the courses are using like high-resistance air and always-a-headwind fairways, selective gravity, and the intelligent rough that strongly attracts balls struck with old equipment. Just a matter of time until the better courses treat equipment more than 5 years old like they do steel spikes.
Fortunately, my home course is a muni, built in 1930. So far they've used their budget for old-fashioned course maintenance like watering, mowing, and taking really good care of the grounds.
A little late this year, but next season I'll have to find a modern course to try, and see just how bad my stuff is.