Thinking about buying some calf guards for training and recovery

I've been having slight pains in the middle of my calfs when I run and the day(s) after training. I also suffer from shin splints. My calfs get very tight and I was thinking about investing in a pair of calf guards to help this.

I have been looking at 2XU PWX Calf Guard from wiggle. Looking through the customer reviews, they seem to have gone down well and people have had success with them but a few people have mentioned about getting the right size. I just measured my calfs girth as 34-36cm so that would put me in the XS bracket.

I know that 2XU are a good brand, what do you guys think? Have you had any experience with calf guards (shin problems also)? If so, what has worked for you?