my aim for this was a fast race bike on which to train, do medium distances at high pace and eventually get in to racing
This is the bit which everybody recommending expensive wheels seems to be ignoring. If you spend £1k on some carbon bling and then get sent straight back to Shimano R501s for want of money the first time you get involved in a Cat4 pile-up, it's all for nothing. If you're not racing, the 10s per hour you save by getting 60s over 30s is utterly irrelevant.
This is the bit which everybody recommending expensive wheels seems to be ignoring. If you spend £1k on some carbon bling and then get sent straight back to Shimano R501s for want of money the first time you get involved in a Cat4 pile-up, it's all for nothing. If you're not racing, the 10s per hour you save by getting 60s over 30s is utterly irrelevant.