tell me how you can get more in pool then solo claiming?  

you said that in pool you need 20 claims for 1 MRAI , so that mean you get 0,0489 Mrai per claim.. It's the same amount that you get when you work solo.. Only think about pool is that you will get Mrai every hour (if your pool made more then 3000 claim per hour) , but you will get same amount like if you doing solo.. So don't laying here and go work in your pool.