On Sunday and today I've been really trying to move my arms in the way that I thought through on Saturday. I'm getting tired deltoid muscles so that might be a good sign. This morning my elbow felt reasonable too, if it is OK tomorrow that may well show that I'm taking the load off it. Read this to see what it's all about.
Today I thought quite hard about keeping my elbows high. I fear that its giving me a rather boxer-like stroke with short choppy strokes. Currently it feels slightly harder work than my lower elbow style but if it is less irritating to my joints it is wroth a lot. Doing short sets I'm attaining a fair pace and even some rapid lengths (2:03min/100m is great!) but I'm finding longer sets harder to maintain at what is basically a higher strike rate.