Oh my word - that Baird letter!
I could stare at it for hours.
I am attaching a couple of examples I did this afternoon (click on it to see it slightly larger). The first f is based on the Engrosser's Script shown in the Zanerian Manual. The second f is from Eleanor Winter's Mastering Copperplate. You can see three significant differences. The Zanerian f starts it's thick shade a little further down the left half and the loop is a bit wider. Winter's f starts the heavy shade as soon as you round the corner to the left and is a bit narrower. Both finish with a different exit stroke.
Like David mentioned, it does look pleasing to have varying heights (in both ascenders and descenders) when you have two next to each other as shown in the first variation of "effort."
In terms of the p, the Zanerian takes its stem all the way to the 1/2 mid-line whereas Winter's goes just above the x height mid-line. (I went a little higher.) Again, in the second p variation, the heights of the descenders vary.
I think the most important thing to try to remember is try to maintain consistent spacing and slant when there are double letters, two ascenders, and/or two descenders. One slip up in either can make for an awkward or unpleasant look.
