My 3rd yr cascades in potsare growing fast, well one pot is growing like crazy, so I trimmed everything back from the initial burst of growth and now they're growing fast again. Should I trim all this second growth back and then takes some bines to train from the third growth or can I find a couple of the stronger growing bines in this second growth and just train those. I always forget how many times I cut growth back before training any bines.