Alex says that the DUAL TRIM splays better than the SINGLE TRIM, so if I had to reccomend one on that basis, already knowing how the D TRIM works, then yes, buy a D TRIM. I will do a comparison between both of them later though.
If youve got high level work too, then the D TRIM would be better. I dont really think its lacking bristles to be honest......but that thought might chnage, Luke