# How can you measure HL(headlightness)?

Discussion in 'Racquets' started by DropVolley, Oct 31, 2008.

1. ### DropVolleyNew User

Joined:
Apr 25, 2007
Messages:
27
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

2. ### ls206Professional

Joined:
Aug 21, 2008
Messages:
1,138
Location:
UK
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

3. ### origmarmHall of Fame

Joined:
Apr 25, 2007
Messages:
3,207
Location:
London
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:

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