how well do the work. im looking to get the shrink war version. and do they way the same a the personal amb transponder

Check www.rctech.net they have a huge thread on there site about them. Guys who use them love them..

and do they way the same a the personal amb

The SHRINK version is suppose to be really light (No Case) the regular version is a smaller footpring, and I believe it weighs less too, and it is suppose to work better in Lower Voltage situations...and put out a stronger signal over all.

Pop TerryS a message on the other board, he's quick to answer questions (I believe they shut down for a week or two right around Christmas....but read the threads over there for that)

I've tried to get him to come here, but he said running most of the info there lets him just have to follow one board for followups, and consumes much less time.

anywhere to get those in the US ?

The last I knew they were only available direct from MRt by using the www.rclaps.com web site.

I have heard of a few tracks that bought a bulk order and sell them locally, but that's about all.

There's no way to order a CLONE version w/o sending your transponder to them for the cloning. But, if you are interested in a CLONE Version, once you have yours cloned, if at a later time you want another one, you just have to give them the Transponder ID number.

Browse this thread (http://www.hobbytalk.com/bbs1/showthread.php?t=237469) for info on the MRT transponder.

I really like mine.... smaller and they offer a few different LED colors plus a choice of wire lengths. Oh... and their cheaper also.

Love mine and being almost half the cost of an AMB worth every penny. Not to mention they come with lots of cool option such as different color LED's tabs, no tabs, long wire short wire. Oh and they are tiny! I know will never buy another overpriced RED transponder