Tangled Yoke Cardigan - frogging

I ripped out the sleeve on the Tangled Yoke Cardigan, I thought that it looked at bit baggy as I was trying it on. I have now cast on using 3.5mm needles instead of 3.75mm. I hope that it works. I think that as it gets near to the top of the sleeve I will use one of each size so that when I knit across the yoke using 3.75mm needles the gauge change is not too noticeable. It sounds a bit mad, but I want to try it to see. I love the yarn that I am using so I really want to be happy with the finished article. I may have enough for a sweater for Lily left over as I think I bought too much. It was a really good value buy and I hope to go back to Florence and buy some more.