WOW! so thanks for the tips and advice team. the reason i am only considering the 3 mentioned is because i am planning to convert the truggy to brushless and will only use the tekno rc conversion kit. so far they only have the conversion kit for those 3 truggies. the RC8T conversion kit is heading to production soon but wont be avail for 2-3 months. i would probably go with that if it was available. but basically i want to build a sweet electric truggy like my Losi 8t. in fact, here are some pics of my 8t.
http://www.rc-monster.com/forum/showthread.php?t=15876
i have been very pleased with the 8t but am anxious to build another truggy and looking for feedback on the Mugen, Losi, and Jammin. i think i got a good source of info from everyone now to make a decision. thanks a ton RCM team!