after reading a lot of post here about pt/pd printing I decided to give it a go.. Following the advice that there were UV (mercury halide) platemakers out there I found a NuArc VFC43 model on ebay that I captured for $128.00(i was shocked that is $600 freight cost and the phsyical size of this baby!). The unit is in great condition and fully functional. It has 1000, 3000, 6000 watt settings and light integrator. I am about to do my first step tablet calibration print as per Dick Arentz book. Everything I am doing is a first mind you. Is there any best wattage setting? I assume 3000 and 6000 watts are going to print signifigantly shorter times than the 1000 setting but are there any other benifits or problems with higher wattage? Will there be contrast, colour, DMax, etc changes with using different wattages? Any help is appreciated. Will I need sunscreen lotion for the 6000watt setting .