OK, I got my garden in really late this year. (late May, I'm in East Central OK) I planted some Mr Stripey heirloom tomatoes along with cherries, beefsteak and romas. My other tomatoes have fruit but the Mr Stripies bloomed and then nothing. They are now blooming again but if there is some reason they didn't set fruit before, I'd like to try and help them out this time. Any thoughts? We have a little blight, I've been removing leaves. The Mr Stripies do have some yellow leaves down low that don't look "blighty" but in all the plants seem to be in similar health to my other varieties. They are all planted in the same area and receiving identical care. ??? This is my first year with heirlooms, are they really that different then hybrids?