Early this morning I did a 3/1 for 6 miles in 55:09. Felt very slow, could have kept going at same pace for a few more miles. But felt like if I speeded up just a bit I would very quickly crash and burn. Which is to say I was trying to keep under control/keep good form. A bit faster and my form would have started getting sloppy today. Although I was faster that first run (5 days ago 2/1 for 6 miles) with very good form.