Making this change in the tpl is probably going to be more difficult. We added to the following to func_is_shipping_method_allowable() in include/func/func.shipping.php (after globals):
PHP Code:
if (
($customer_info['membershipid'] == 2 && $shippingid == 1013)
|| ($customer_info['membershipid'] != 2 && $shippingid == 1011)
)
return false;