I ran some benchmarks comparing CoolMiner v1.3 to CryptoDredge 0.4.1

Seems CoolMiner does in fact run cooler, so given the API functionality, although just a tad slower - seems to be the optimal choice overall.

Lyra2z Benchmarks

Rig33 (0 CC | 0 MC)

CoolMiner v1.3
After 60+ Mins~

GPU 0 - 3,341.94 kh/s (Gigabyte GTX 1080 Ti)
GPU 1 - 3,304.69 kh/s (Gigabyte GTX 1080 Ti)
GPU 2 - 3,338.17 kh/s (Gigabyte GTX 1080 Ti)
GPU 3 - 2,393.57 kh/s (MSI GTX 1080)
GPU 4 - 2,426.58 kh/s (Gigabyte GTX 1080)
GPU 5 - 2,526.84 kh/s (EVGA GTX 1080)
Total Hash = 17.33 MH/s

CryptoDredge v0.4.1
After 60+ Mins~

GPU 0 - 3,386 kh/s (Gigabyte GTX 1080 Ti)
GPU 1 - 3,412 kh/s (Gigabyte GTX 1080 Ti)
GPU 2 - 3,179 kh/s (Gigabyte GTX 1080 Ti)
GPU 3 - 2,514 kh/s (MSI GTX 1080)
GPU 4 - 2,560 kh/s (Gigabyte GTX 1080)
GPU 5 - 2,707 kh/s (EVGA GTX 1080)
Total Hash = 17.90 MH/s