I can second JohnnyO on the aggressiveness vs the pressure. For some reason it is easier (for me at least) to focus on the pressure and grip to be light, when I worry less about the razor cutting, because it is more aggressive. Goes for blades as well. Once you put in that Feather blade, your first shave will be with the lightest of touches, because you have heard what a monster that blade is, and after you will most probably wonder what all the fuss was about...
That said, I only learned the correct angles properly when I went to a really mild non-adjustable razor
Regarding your Tech: I have a tech, which is a british ball ended type, with an aluminium handle. It is feather light, and mild, yet produces excellent shaves. But I find it hard to handle. The reason is, that the handle is very thin, and round without any lengthwise grooves, which makes the razor "roll" between my fingers. I often find I need to take care not to grip it too tight. If I'm preoccupied by something else, I will feel the shave afterwards, no doubt.
I find it easier to hold on to the Progress or my GEM Micromatic, however some people find the Progress hard to hold, as there is no knurling on the handle. Its all personal preference.
I only gave the Micromatic as an example because it has lengthwise grooves in the handle, I would not recommend it for you just now, as it is very aggressive.
/Max