Asics Excel 33s

What are people's experiences with these? Recently got a new pair and have been breaking them in gently. Took them out for a 10k tempo run last night and they killed me. I got numb toes, ankle pain, pain in the arch of my foot, the lot. I've done hundreds of pain-free miles in Saucony peregrines and kinvaras so I am well used to running in stripped-back. neutral shoes. I'm not new to Asics either. Maybe there are just not right for me but would be interested to hear how anyone else is getting on with them.