Thanks for your good advice folks.

As I am a fairly "stocky" build I think I will go for the upper level of the recommended weight - after all I started this not for looks but for health reasons.

I didn't want to cheat myself by changing the goalpost without proper reason.

So many of my friends were going down with type 2 diabetes and I did not want to end up with the same condition

Just confirm I am also following an exercise regime too and the experience of being stuck for some time at the same weight has given me an insight as to how little more I will be able to eat once I go into maintenance