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View Full Version : How can you measure HL(headlightness)?


DropVolley
10-31-2008, 04:15 AM
I've got two Asian K90s and they've got drastically different HL values. Is there any way of gauging (guessing) just by looking at the how the racquet balances and determine what it's actual HL really is?

Cheers from South Korea

ls206
10-31-2008, 04:34 AM
yes, this Q has been asked many times.

- Balance the racquet on an edge/tube/rod.
- Take half of the length, e.g. for 27", measure from the balance point to 13.5"
- Count the no. of 8ths of an inch (from 13.5") till you get to the handle
- The number of 8ths represents the number of "balance points"

if the handle reads > 13.5" then it is xPoints HH,
if the handle reads < 13.5" then it is xPoints HL

origmarm
10-31-2008, 05:10 AM
Essentially you have to find the balance point using a balance board (or similar device you can construct) and then measure from the butt end in inches to that point. Each "point" either HL or HH represents 1/8 inch. So an even balance at 13.5inches from butt.

The board looks like this:
http://img.tennis-warehouse.com/big/AVBB-big.jpg

Which as you can probably tell is a $27 rod on a board with a ruler attached.

You can make one yourself, poster Craig Sheppard made a good one a while back with instructions:
http://tt.tennis-warehouse.com/showpost.php?p=1605659&postcount=1