6x4 hill climb efforts

I left the house at 5:30am and did;t retain until about 4:00 pm. Given the traffic on a Friday I didn't want to go to my ideal road for the 4x6 steady state so I did the 6x4 on the hill close by (Heekin Avenue). Power was 405, 374, 373, 366, 366 and 363. Well above steady state but I felt like I wasn't killing it. Normalized power for 50 minutes at 311 with 1988' of climbing in that time. I'll do the 4x6 tomorrow on the time trial bike.