Do we use poly strings for juniors

[julian1]

Please see very interesting posts #2 and #3
inside the link

http://tt.tennis-warehouse.com/showthread.php?p=6962482&posted=1#post6962482

Two issues are addressed-
do we promote poly for juniors?
If NOT why NOT?
do we promote hybrids and WHICH ONES for juniors?

Answers are related to coaching philosophies

[GeoffWilliams]

Juniors all over the world are using poly and crushing the ball. Why ask the question when it's already being answered by them?