[amsat-bb] coax patch after the LMR 600

Hi All I am getting my new 30 ft tower and wish to changeover from RG213 to LMR600 I have, for the Vhf and Uhf cross yagis. Will be installing my masthead preamp too and its going to be convinient to use a short length of thinner coax patch upto the Beams near the AZEL. So any tips , suggestions on the type of thin cable RG-58 or RG-213. Thank you Best 73 Pop VU2POP :o) Vhf & Uhf cross yagis, Masthead preamp for Vhf, AZEL with digital readouts all home brew ;o)