[Elecraft] K2: OK to use a bypass cap on the key?

[w2bvh]

On my K2 Is it ok to put a 1 - 10 nF bypass cap across my straight key?

I've got a 6M KW amp and evidently rf was getting into the key line at 
power levels over ~350 W and keeping the system keyed all the time.  
Three turns on  the keying wire (mini zip cord) through a split bead 
fixed it, but I'm getting on air comments about key clicks.  I'm going 
to switch to RG174 on the key and intend to add 1 - 10 nF across the key 
terminals, if its not harmful to the K2.


73,
Lenny W2BVH