I am using the 20a version of this Tracer (no remote needed) However I have also used an ordinary PWM and got about the same amps to the battery. My cables to the outside panel are mostly long (25 ft) #2 AWG cu-al jumper cables clamp to clamp, with some #8 mixed in at either end. Very little line loss with those and easy to deploy and stow. You need something lumpy on the ends of the #8 to clamp to, such as battery post connectors.
The 20 amp Tracer limits itself to 260w input, so if you plan to expand your array you need to go higher. It will work with two 120s just right. A 120 aimed gets you 7.6a Isc so two is 15.2a with PWM. About the same with MPPT--under 20a anyway.
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