Z1 Oil Cooler Kit 25 vs. 34?

x10370zx

Trying to (finally) get the car track ready for next year and looking to pull the trigger on a Z1 oil cooler kit. My question is simple - 25 row vs. 34 row... I'm about 50/50 on this so here's my thinking for each. Let me know what you'd recommend!

Reasons I'm leaning toward 25:
-Cost
-My car has never gone over 220 deg when driving hard (street), even on 100+ degree days in TX
-I will only be doing track days 3-4 times a year at most

Reasons I'm leaning toward 34:
-Temps can be over 100 in TX in the summer
-Possibility of 25 row not being as effective during a hot day at the track - this is probably my biggest concern/most important of all

So in summary, is the 25 row "enough" for a TX summer with 3-4 days of track use?

Thanks in advance!