It is still profitable. Depends on your definition of efficiency I suppose. There are other things to mine that may be better options right now.
You can still do much worse than XZC.
what is the best option? XLR?
yeah XLR is cool for now but diff jumped up lately...i used to make 15$ per card now 11$.........................
Can I ask you what pool and miner are you using?
pool:
https://umine.orgminer for gpu: ccminer_x64 bat line is as follow /ccminer.exe -a xevan -o stratum+tcp://s.umine.org:3739 -u SXW9gq5mkzocAKdxy4CNZpo4mUpVw59fjQ -p c=XLRX/
miner for cpu: cpuminer-multi-rel1.3.1-x64 /cpuminer-gw64-avx2 -a xevan -o stratum+tcp://s.umine.org:3739 -u SXW9gq5mkzocAKdxy4CNZpo4mUpVw59fjQ -p c=XLRX/
but not as profitable as few days ago......as i said 10-11usd/day/card