All I can recall of the Talair Turbine Porter was that there were a few places in the Kabwum valley that only the Porter could land at, they were even too short for a C206. So Trader P. Booth used to fly the weekly flight into these places and set up his mobile trade store on the tailplane selling bush essentials like batteries, torch bulbs, matches, mobile phone cards (just joking) etc.. The departure time to return to Lae was a function of all the stock being depleted, all sold at a premium of course to pay for the special skills required to get the goods delivered.
The only guys that I recall being rated on the Porter were Trader Booth, Max Parker and Max Lincoln. It is certainly an impressive STOL aircraft and beautiful to watch when operated at its limits.