issues with using xmrig-proxy with MINEXMR pool
Thanks for making such a great product to us!!!  I have been using xmrig, and I keep 2% donation on all the time.

When I use xmrig cpu miner alone with pool.minexmr.com,  minexmr auto adjusts the difficulty on their side.
So I use WALLET+DIFF as username in xmrig config,  just to make sure to use fixed difficulty.

But now I'm using xmrig miner + xmrig-proxy,   
should I set WALLET+DIFF in the USER part of the proxy config file? I saw the proxy config file has "custom-diff",  should I also set the difficulty value there.... ?
and in this case what should I set in the USER , PASS, Keepalive settings of the xmrig miner ?  I can just put anything as the nickname of the device for the username? or I still need to use the WALLET+DIFF as username and X as the password from the minexmr pool side?  what about keep alive setting its for the xmrig proxy or minexmr pool ?

btw,  
1.
I learnt GCC compiled X86 xmrig cpu miner has better performance.
what about for X64 xmrig cpu miner?  gcc compiled has better performance or msvc ?  or its the same?

2.
Using 
-o stratum+tcp://pool.minexmr.com:4444
or
-o pool.minexmr.com:4444
for the command line both works,  does it has any difference?  which one is better way to use ?


Great thanks if someone can clear these confusion for me.  I have read all the posts here on GitHub and Reddit forum.  I would like to pay $50 worth of XMR for thank you,  plz leave your XMR address 

  