New Knuckle couplers

[jerryl]

 Has anyone had any experience with the new Bachmann knuckle couplers with the springs. I recently bought a Bachmann Davenport switcher to use as the power for a Grandt line HOn3 box cab. I used the Kadee ng coupler for the front, but needed a shorter one for the back & found that the N gauge coupler on the switcher mated well with the other couplers & didn't require assembly. Does anyone know where I can purchase individual sets...seems most suppliers are selling them as sets of 12,  Don't need that many.   thanks

[ACY]

On ebay you can buy 1 pair for $5-6 including shipping, elsewhere on other online stores the couplers are only about $2 a pair individually but the shipping costs are $8-10, making one pair $10-12. Whereas you can buy 12 pairs on ebay for $15 including shipping. So you are really better off buying 12 pairs and saving the rest for later if you model in N scale or know someone who does.