hi guy,
Just an observation, or may be my eyes are lying, the cable you recieved seems to be larger than the stock cable
by 1-2mm.
Here is what i TRY TO DO when I am going to purchase from someone I am not familiar with.
I measure props and flex shafts 2 ways, in inches and in milli-meters, so I can be sure of what I am getting.
Then I check to see if what they have is going to work with what I have. Some makers of boat products don't take some things into consideration, so I have to be sure. If I have to call them, then that's what I do.
I know that we run into situations where the supplier does not have what we want in stock, so we try to find others.
Just make sure that you know what you are buying.
I am waiting for some special props I ordered for my PT-109. It's been a month now, but the supplier said I should recieve them next week because he was out of stock at the time I ordered.
Good luck.

[8D]
P.S. the flex cable for the thunder cat is the same as the cable for the shockwave 36.