Topband: ? new phasing line for YCCC 9 Circle

[Edward stallman]

I'll be cutting new phasing lines for the YCCC RX 9 circle using the 
AIM4170 . All phasing lines will leave the combiner , pass through a 
choke, then the RG6 will run under ground in 3/4 " PVC to the 20ft 
verticals .

My question is about using another choke at the preamp / vertical . I 
was thinking of using the large 2.4"  mix 31 . By making the RG6 longer, 
I could wind up to 12 turns before connecting to the preamp .  I have no 
idea if this will be an improvement or a waste of time ,coax and money ? 
I'm in a fairly quiet location and as I have it know my noise floor is 
around -126 DBM . So asking before I start cutting on my new 1000ft 
spool  of commscope flooded coax

Thanks ,  GL TB , Ed N5DG