Thank you for the assessment and advice! Cross training and the gym seem to me to be the most complex part of training in BB and any guidance on their function and utility is handy in guiding my decisions. It seems that my worries about the gym's usefulness in the shortened u21 training schedule are somewhat valid with considerations of sublevels etc. Thank you for outlining a bit more clearly the functions and uses of the gym, lots of food for thought and information as I make decisions about costs and spending.
Cheers!