As promised, I updated my site and now have a progressive speed building CD available as dictated by yours truly.
A set of 24 3-minute dictations where, in most cases, each minute is faster then the prior minute. The CD begins with dictation at 65, 70, and 70 words per minute for Track 1 and ends with Track 24 dictated at 120, 130, and 140 words per minute.
For this group, I'll gladly waive the shipping charge which will bring the price down to $19.95.
For details, here's the link to the page: