The Pfaff BIG hoop has an embroidery field of 225 mm x 90 mm. If you are lining up lower case letters to upper case letters, program in an extra upper case letter. Position the lettering to frame trace to the stitching line, then delete the extra upper case letter. The lower case letter will remain in place. This will work with lettering with or without a tail below the baseline.
Fonts sit in invisible boxes, side by side, to automatically space themselves.
Fonts that are angled, align exactly the same. To join angled fonts, drop a line straight down from the farthest right point. Place a dot at the bottom of the line to begin the next letter. Occasionally, visual spacing of lettering will override computer determined spacing. If you are working in a memory bank, visual spacing can be seen before it is stitched.