There's a part about Fip that generally sends some disbeliefs in accuracy. You see numbers and certain affects it seems. HRs and Ks. Lower ERA but Higher HR/lower than 8 K rate? Fip jumps. Low HR/high K Fip is lower. Pitching in launching pad that is MP gives me some I don't really believe this Fip number if he's pitching in LA or SD type of ballparks. Junior Guerra's numbers prior to today are fairly close to Nelson. 3.2Fip 1HR allowed. I'll be interested to see where his Fip goes after another HR given up but 11ks today. Nelson pitching to 7.1hits/9 is impressive. Any starter that doesn't give up 8.5+ to me depending on BB/9 stands to be better than a Peralta who's 9.7+ on his career. Johnny Cueto in 2014 had a 3.3Fip to a 2.25ERA. 22HRs but 6.2hit/9 2013 3.81Fip to 2.82ERA (60IP/ 7HRs) 6.8hits/9. 2012 3.21Fip to 2.78ERA 15HRs but 8.5hits/9 Less HRs and Ks/9 but higher Hits and the closest his ERA resembled Fip. Nelson keeps producing under 8hits/9 he will outproduce his Fip continually. Half a year of Cueto netted Brandon Finnegan, Cody Redd, and John Lamb. 3 SPs. A trade of Nelson had better beat that if I'm even considering a trade of him. Mentioned Red Sox. Devers, Benintendi, Kopech, and Trey Ball would be my asking. Yes, but even if you are skeptical of FIP, Nelson is a 4.00 ERA pitcher in his career. Having a 3.00 ERA after a handful of starts in 2016 (when his peripherals have not improved any) does not really make him a great starter... I think you're going to be disappointed if you're valuing him anywhere near Cueto. Rafael Devers is a nonstarter.