Intermediate sailor seeks advice re: liveaboard pocket cruisers
Actually, with a PHRF rating of 234 the Tartan 27 would be noticeably faster than the Vega at 246. The keel/cb on the Tartan would result in better upwind performance and raised would result in better performance as well. The centerboard can be adjusted to balance the helm under way as well reducing weather helm.
While the Vegas have a strong cult following they have never had any great appeal to me. I have never actually seen an article or heard of one doing either a transatlantic or a circumnaviagtion voyage but that does not mean it did not happen...it just means I haven''t heard of it.