Paulina Lake is fishing well with Beetles, Pink Hoppers (Really), Royal Chubby, Purple Chubby, Ants, Red Aero Legs and parachute Callibaetis. Fish are on the ledges and bank lines and over the shoals in the shallow weed bed zones looking up for dries. 
I also like to fish the drop off’s of the ledges with a Balanced Leech and a Red Holographic Jig or Red PT. 
It is a great time to be on Paulina from now until Halloween. I might add some guide days here in late October if the weather is good, so keep it in mind if you want a late season trip with me.