Paxboy,
Any tailstrike on T/O should be a mandatory return, or at least a precautionary landing at the nearest suitable airport.
Tailskid or not, the crew up front is in no position to determine "how hard" the strike was...
The 727 and 737 CRM specifically say do not pressurize (or de pressurize) the a/c and land...
And does anyone remember the JAL 747 that had a tailstrike, reported and incorrectly repaired by Boeing engineers around the aft pressure bulkhead area...
A lot of realitives remember that one...
Tailstrike on T/O = Landing as soon as practical...(notice I don't say immediately...)