Running 1.3.1 and getting 300 S/s per R9 290x on a normal PC and running stable for the last hours.

[2017-01-09 21:42:14.300] [info] [GPU0]  161.0 I/s 310.0 S/s (5s) 159.8 I/s 301.2 S/s (1m) 159.9 I/s 300.3 S/s (1h)
[2017-01-09 21:42:16.983] [info] [GPU1]  159.0 I/s 297.2 S/s (5s) 159.6 I/s 299.3 S/s (1m) 159.7 I/s 299.9 S/s (1h)
[2017-01-09 21:42:18.968] [info] [Total]  320.0 I/s 617.0 S/s (5s) 319.4 I/s 601.5 S/s (1m) 319.5 I/s 600.1 S/s (1h)

Quite impressive work - The last time I tried a zcash GPU miner was SilentArmy and got ~50 Sol/s if I recall correctly....