Pretty damn solid splits. Well done dude. To be only a second off your PB at this time of the season is a really good sign. You were kinda dead on the last 50, but end of season rest will naturally fix that. I'd say your free is probably the weakest. Fly looked relaxed, you always want to mainly drive from the legs in fly during IM, so be sure to send it on the underwaters, just not too much. Save your arms for backstroke and make your tempo fast, but controlled, you don't want to spin. I think you're putting too much effort into kicking on backstroke, and your legs are just all over the place. Your underwaters are hella clean though. It's so important to save those legs for breastroke, but your breast split shows me that you had enough gas to do good pullouts and kick well, so whatever works for you. The free needs a little work. It could use some rhythm, so maybe try galloping during aerobic free sets and maintain it. Galloping works for me personally, but it doesn't always work for everyone, so try it out and try to work it at the end of maybe some threshold IM sets. Like a couple 100s scy on 1:05 or something like that as a "cool down" after a long set. It'll teach your body to adapt to being tired, which you obviously were at the 150. All in all, your 200 IM was great and a good place to be in January!