I am seriously considering buying a Wright Stander of some variant. I have a couple questions about these... Can you explain the difference in the Small Frame vs Large Frame for the Standers? The speed difference between the Small, Large, and Sentar seem to be due to the difference in drive tire size. Correct? Also appears the RH and Small frame share the same size tires and accordingly, speed. Are the 48" decks the same on all 4 mowers? My dealer only has a couple in stock to look at. Is the RH simply a Sentar without the seat? I wish you had more pictures of your products on your website. It is hard to see any detail in such a small size. THanks in advance for the information.