I've never used a Jaydee but I doubt if they are all bottom shy, as Alvin Ewen, ( Former Steel Pulse Bassist), uses one and he is a phenomenal bass player and if he can use a Jaydee to hold down the bottom end in one of the best reggae bands around, then I doubt if all Jaydee's can be called bass shy...!!!
( in my opinion )
Jazzyvee