mick, the position of the circle (i take it you mean the umbral boundary) constantly moves throughout the duration of the eclipse. However, it should look the same from any place on earth at any particular time (follow GMT/UTC to be in sync).
Lady, maybe can post some of your members' pics...? Also, any nice Mars shots from them? Mars opposition was last week 9th April, and closest approach to earth (within the last 6 years, I think) came a few days later on the 14th. I did visual observation over the past weekend but wasn't up to doing any photography. And Jupiter is still quite a magnificent view although the January opposition is long over. Saturn will be reaching opposition next month...but so far away it's miserably tiny on my 4" tele.....