Anyone know if the Mini 1060's are any good or should I stick with the full sized one?  

For some reason I just have a problem thinking the mini cards will be as good as a full sized card?

https://www.newegg.com/Product/Product.aspx?Item=N82E16814487263&cm_re=gtx_1060-_-14-487-263-_-Product

vs

https://www.newegg.com/Product/Product.aspx?Item=N82E16814487275&cm_re=gtx_1060-_-14-487-275-_-Product

Also... Should you stick to 3gb or 6gb for mining?