Decided to transplant the couple currant tomatoes were trying out of there 4 inch pots into 6 inch pots. This tomatoes were planted about 8 weeks ago and showing promise.
Quite healthy, as is to be expected of currant tomatoes. Hopefully you will be keeping them in pots? I made the mistake several years ago of planting currant tomatoes directly into the garden, thinking they could be grown like any other tomato - WRONG!!!The vines became a strangling mass 8 feet wide, that overran everything nearby. It was impossible to harvest more than a fraction from the dense mat of foliage, and they were my #1 weed the following year. I gave a plant of one variety to a friend (who also planted it in the ground) and it eventually grew over her 6' fence. Tiny tomatoes, monstrous vines.
I plant all my tomatoes at the house in pots, and were slowly planting more and more tomatoes at the farm in pots.
We use a lot of mycorrhizae, they come in the soil we use and we dust the roots with it during transplanting. Our other tomatoes were transplanted earlier but there roots were becoming the same way.