bubb2 - thanks for the input. Reading the different comments here, it seems that, if one were in 3 knots of wind with a 130 headsail on roller furling and noticed that the leech was curling, it may well make sense to take in some of the head sail in order to reduce drag in the slot and create better airflow across the back of the main.
Btw - I hope you don't misunderstand my questions to mean that I think a different boat will compensate for the (rather considerable) holes in my sailing skills! I am very much hoping to build those skills in order to have more fun in whatever I boat I find myself in.
reading some of the comments along