A 1 turn competition spin in the T67m uses around 1100 ft so spinning from 3000 or 3500 is not a problem if you know what you are doing.
If I am spinning with a student on the controls I always start above 5,000 ft just in case they get the recovery wrong. We always wear parachutes and practice abandon drills on the ground as part of the AOPA aeros course.
In the 10 years I have been flying and teaching aeros in the T67 I have never got into an accidental spin (plenty of departures of course, but always recovered at incipient stage by centering the controls) and I have never had any hint of a problem recovering from fully developed intentional spins. Always aware that the next one might be the first problem one though.