Tomato Plant Problems

[frankvena]

I'm growing my tomatoes in containers this year. I tried last year and had a problem with what I can only assume is blossom end rot. When I discussed this problem with multiple sources last year I was told to use good container soil that had nutrients, perlite etc. so I bought organic container soil this year. I supplemented the soil with horse manure (just like my Italian cousin who has the best tomatoes in his neighbourhood) and added some tomato specific fertilizer with added calcium as recommended. The plants themselves look very healthy with plenty of blossoms and a few fruit starting. However, I noticed today that one of the fruit is suffering from the same malady as the ones last year, even though it is completely different soil in different (larger) containers with supposedly all the right nutrients. I water the plants every other day by soaking them with the hose. When I check the soil in a couple of days, it's dry to a couple of inches below the surface but not bone dry. Could I be watering too much? I'm also getting a lot of curling on new formed branches at the top of the plant which I assume is from too much nitrogen from the manure. Can anyone confirm what these problems are and make any suggestions as to how to resolve them. I lost 70% of my crop last year to end rot and will be devastated if that happens again after so much effort to avoid it!