another runner wrote:
Do you see getting peaking for a 1500 the same as peaking for an 800 - say get in a 1200 m TT?
I do. I think you need a solo 1200m at better than goal pace for confidence. A great 1500m workout might also be 1000m, 600m, 400m, 200m getting progressively faster, with the 1000m at better than race pace.