Hey, Guys,
Ok, I started experimenting with the soft edge ideas using "offset" masking. Here is a bit of a tutorial on what I did and some initial results.
I started with blue tack (about 1.5inch length) - pic 1. I then rolled three pieces out between two tiles - pic 2. I am calling them BT1-BT3, one being smallest, 3 being the largest. I made every attempt to get a uniform roll for all three thicknesses. When pressing these on, I made every attempt to minimize the "squish" effect on the blue tack. I used the same mask/BT# across the 2 different air pressure settings to minimize any distortion of the blue tack involved in "re-pressing" the BT/mask pair.
I then cut 3 identical masks from some post it note (pic 3 is the mask on BT1). I then used the following parameters:
Paint thinned 40%
Air pressure at 18 psi and 25 psi
Varied the BT worms from BT1 to BT3 as annotated on the card stock.
I used neutral grey and faded OD (I had the most of these in the bins. As you can see (I hope), and no surprise here, the larger BT worms had the biggest impact on the softened edges with BT1 having the "smallest" soft edge and BT3 having the "largest" soft edge.
All painting was done at the same distance and the same angle from the table top ( well as best as my eyes could pull it off). All sweeps back and forth were done in a straight line versus swinging in an arc. Everything was sprayed with my Paasche Millenium Dbl Action airbrush with the same tip/needle combination.
Pics below:
Pic 1
Pic 2
Pic 3
Results Pics: