Thank you very much McJeep. As for the barbwire, I start by determining the dimensions of the border I intend to create. Then on a scrap piece of leather I stamp a few of the barbwire impressions and measure them against the border I will be stamping on my project to see how many will fit, for example in a 4 inch line. I then adjust the border for my project to fit (to the nearest number of barbwire impressions) required to reach from corner to corner. Keep in mind to include the length of the corner barbwire stamps when determining the length of your border, and remeber to slightly overlap each impression as you are stamping. Then I use my stylus and a ruler or straight edge to make a very light line along where I will be stamping my border and just follow the line. This technique works very well with any of the many border stamps.
I hope this helps,
Sam