Tomatoes 'cracking'?

Heh all,

a couple of the tomatoes coming through on one of my tom plants are cracking at the end - i don't think it's blossom end rot (i'd be disappointed if it was 'cause i've been consistently watering them) but what is it and should I remove the affected fruits?

You could be watering too much.
If they take on too much water too soon they either split or the skin can crack as it can't grow at the same rate as the water is taken in.

I make a point of not watering too often, sometimes i leave it 4/5 days between waterings.
Toms have 2 sets of roots, the top set are feeder roots and the bottom set are water roots, so its very diffcult to kill the plant.
I don't water too often so the water content isn't so high giving to more flesh and therefore more taste, they are a little bit smaller but the extra floavour, MMM MMM MMM
My dad goes mad as he waters his every morning, and he says mine will die.
They never have yet and i've been growing them for about 6 years now 

Are those tomatoes actually true beefsteaks, or 'big uglies' like Marmande?

I think this is caused by erratic pollination, and is probably worst at the beginning of the season. 
Gillie

It's just the way they grow. Ferline & Brandywine come out like that, nothing ou can do about it.