Connemarathon - Half

My next big race is the Connemara Half Marathon, on April 11th. From what I have heard this is a tough old run with much of it going upwards. It wouldn't be too dissimilar in terrain to my own home run of Seanféistín but it is apparently tougher. I have still not run since last Sunday's Craughwell 10 miler, but I will go for a trot this weekend and start my training proper from next week. According to www.mcmillanrunning.com I should be aiming for a time of 1hr 53... My best half was last year's 1.56 (Galway Half Marathon) so I don't think it is too optimistic to take 3mins off that - the only big 'if' is the toughness of the course.