u can see the earnings , just be aware that had some unexchanged piled up on MC when i started mining with Waffle

what helped me with rejects and WU was
--queue 5
--scan-time 1
--expiry 1
--gpu-threads 1 (with 500 or lower khs i strongly suggest this last one)
--I 18 ( ofc its faster with 19 or 20 but  MORE rejects)

495 khs with each cards

MC   GF: 1     A:600064   R:9216 (last 22 hours) WU:467.5/m
WP   GF: 205  A:1347584  R:2048 (last 48 hours) WU:470.9/m

( i didnt had this many GF since i started a few days ago , still its nothing to realy worry about as i see)

payoutwise MC is not even close to what u expect based on the front page stats
WP brings what it shows .

and yes a few weeks ago i was happy with MC but i prefer WP now as it is a lot more user friendly  ( full respect for that !! )