We are Asics groupies at Jazzercise.  My Cumulus 12 had to be replaced.  I tried the Cumulus 14 because I couldn't find the 13 in my size.  They are as bad as all the reviews say - stiff, uncomfortable, just too pared down.  I also tried the GT 2000, but it is too light and not supportive enough.  I wear a 10 2A which makes the internet about the only place to locate my size.  These are light, supportive, and properly sized.  If Asics continues to downsize the quality, I think I will try Brooks next time for my overpronation.  Aerobics at 67 requires a great shoe.  I also had an injury last year and don't want to visit that again.  They suggested surgery for my foot, I decided on acupuncture, anti-inflammatory diet, low impact and GREAT shoes.  It is working.