[UK-CONTEST] Rotator at foot of mast - any issues?

[Eddie G0EHV]

Hello,
In the past I've always used the "Armstrong" method to turn my mast when out 
portable. It's a hassle when called by a weak one in a contest to jump out 
the car, turn the mast while listening to the radio then dash back to the 
operating position only to find he's QSY'd and is calling someone else!!
Now I have the chance to use a rotator - Kenpro KR-400.
I propose putting at the base of the mast. Anyone think of any issues with 
this? Mast is about 15 ft of alloy scaffold tube. Biggest antenna load at 
any time is a 2 Metre 13 ele yagi, plus a couple of 23 cms panels plus a 
couple of 13 cms loop yagi's.
I also will use a thrust bearing at the guy position.
Thanks,
Eddie
G0EHV