Don't do it.
PRO - super fun, and good for HAAT P2.
PRO - still pretty rare to see full resistance squada, so you can feel special and unique.
PRO & CON - the RNG nature of it will have you getting stomped by position 150 on your arena shard, but the next day you will be roflstomping 1st position.
CON - you need super speed mods on Poe.
CON x2 - even if Poe is the fastest, his AOE expose is RNG.
CON x3 - The AI sucks, and wont hold on defense... Ever.
Full resistance will make you happy and feel godlike. Then the next day you will throw your device out of the window. It's a rollercoaster of emotion.