I trained in Florida - Orlando Flight training in Kissimmee. I was out there for 3 weeks in March April 2003 and was pretty unlucky with the weather. Only did 43 Hours, with no time for Test. Also did all my exams out there in this space.
I came back (to Teesside) to complete, and had to do a further 4 hours to get used to UK weather/RT etc
I, personaly, would recommend doing about 40 Hous in florida (or wherever ) and completing in the UK.
I recently started som IMC groud school and quickly realised that there was a lot that those guys out there did not teach me.
But.. six weeks would be ample time, you are only talking about an hour per day!!