exactly roy,

the manufacturer will recommend an ideal line size (the size usually
relates to the 'cc' capacity of the motor) so the machine all runs in
balance, then the user needs to take a little tiem in practsing to sue
the line tip for best economy, with practise i found you can get quiet
quick at trimming and not use much line.

len

snipped
--
happy gardening
'it works for me it could work for you,'

"in the end ya' gotta do what ya' gotta do" but consider others and the environment
http://members.optusnet.com.au/~gardenlen1/