Where can we download and add to AM high performance miners like ccminer X17SPmod ?

if you go to http://www.zpool.ca/site/miners  on most popular algos, like X17 and order by percent of used mining software, you will see that X17SPmod has the best HashRate and is used by 65% of top miners. next one is alexis with just 15%.  

For NeoScrypt algo the best performance is from ccminer/8.18-KlausT  and we can easily find it and integrate. Any idea why it is not included in AM ? Or how can we find and download all the other SP-mod ones, for the highest profit ?

Any ideea ?