Robbbbbbb here is one with a JTTL done from the low and another...

Robbbbbbb here is one with a JTTL done from the low and another from the first impulse high

now for the basis behind how a JTTL trendline is made.
If you pick a point on a gann square of nine chart and go 360 degrees the number you come up with will be the low number you started with, its squareroot + 2 and then resquare it again.
example if yor low was 34 the formula would be
(SQRT(34)+2)^2 this gives you approximately 61 (360 degrees on a a square of nine chart is obviously 61
Jenkins idea was if we draw a trendline from the low point to the new calculated price 12 months in advance
(in the bhp example this is 41.89 on the 21/11/2009 (one year from the 20 low)).
I have also done a JTTL line from the first impulse high after the low and you can notice with the yellow arrow it was only 2 days out from a major low. The intersecting of 2 JTTL lines is thought to be a good time cycle turn but also a strong support area.

Lastly i have done 1/8 increments from the low as support lines (back to the gann wheel this is 45 degrees of 360)
in bhp case this is calculated as

(SQRT(20)+.25)^2 = 22.29

The next increment would be

(SQRT(20)+.50)^2 = 24.72 and so on.

When the JTTL line crosses these calculated support lines we have some nice turns as shown by the green arrows.

Anyway this can be played around with heaps and different highs and lows used for possible turns
Please note the 9 and 5 and other numbers on the chart this is just an indicator and has nothing to do with any of jenkins theories.
Hope to put a few different techniques for people to play around with in the coming weeks