Copying the design ?? An LD3 is an LD3 and an NTC3 is an NTC3 Lot's more stuff to adjust on an LD3 and lots more thats done different....it's not like the NTC3 & LD3 parts are interchangable

Back on topic my new 12TR is ready to be broken in Only mod so far is the optional OS Speed Hyper Head. I like the TR's, had one in my Reflex for a couple seasons and it pulled that tank around our tight track real well

Here's a pic...