MM Xl rating questions

[lincpimp]

So I am wondering how the XL compares to the Hydra line. I have a 2028 and want to run it in an 18-20lb rc on 10s... I have a hydra 180 hv, and will run mech brakes.

Also wondering if I should run a closed system for water cooling. Make a small radiator out of al tubing and run glycol in it. No pump, but the radiator to cool it and the heat will transfer out of the esc. No idea how hot this setup will be, but seeing the data log info from the XL on 8s, ny system should pull less amps on 10s.

Any thoughts?