My ftp was moved up after a training session… When for a group ride outside 2 days later and 3watts have been deducted is that not going to make my session next week easier than I can cope with… Is this best to leave the program to sort it? Thanks

Hi Julian. Seeing signature parameters fluctuate a bit up and down (less than a few percent), is normal and won’t affect your training or improvement to any significant degree. You can almost think of your signature parameter progression like a weight scale where it goes up and down a bit everyday/few days but overall there is a positive trend. (If you were planning a 1-hour TT and needed more precision, we would then consider reviewing and adjusting.)