Murphy's Law ...
I don't have to try something I know is dangerous to see if it is. If the push sticks slip and slide along the workpiece because they have "no grip" they may contact the blade. There needs to be a positive "hook" on the push stick to prevent it from slipping like a push shoe where there's a stop on the end. The push shoe is way more safe than a push stick. just look at all the good You Tube videos where they are used.
The OP asked for the "safest" way ... so, I'm not gonna give him some advice that I don't totally believe is safe. Better safe than sorry. If you want to continue to use this method, that's up to you. I wouldn't because there are better and safer ways.
The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
Last edited by woodnthings; 12-19-2018 at 06:42 PM.