i have a n/p rs4/6 on a loft rdm400, i used to use a loft430 on my 5/8rss and n/p6/2 till it broke

, i now use a combat 430 rdm, both these masts are around the $600 i think

compared to maybe $1100 for the x6, i used to use a n/p x9 sdm till it broke

i'm sure i cant notice any difference in the performance in the 3 masts except the rotation is much smoother on the the rdm's