Votex Generators on a C310, C402, PA31 etc are like fat tires and a V8 in an FJ Holden. It may go faster, with far less safety but it's still an FJ Holden and 1955 technology.
Whatever your aviation task, you need to buy an aircraft that the manufacturer guarantees will do the job.
Your problem Jonjie is that Phils aviation will never pay the true commercial rate for you to invest in the right equipment and gain a return on capital.
Geezus - they getting $90K for an Ashtruck these days..... or do you get two for the price of one??? For that price I'd be looking for chrome spinners, sheep skin seat covers, mag wheels and oil cooled choke cables!
Woomera