Don't hand out fliers, that will be the end of you.
Does your parish have an email directory ?- If not request one be made. Instead of handing out fliers, sneak them into the bulletin or go in early and when no one is watching "locate" them throughout the chapel. Have someone place fliers on the windshields of cars in the parking lot during mass.
Actually, any of those options listed may very well be the end of you. Someone will run to the priest with the material and you will be hunted down relentlessly.
You are in a very tough position and there of many more of us out here with the same problem. You risk being ejected from your Chapel with no Resistance Chapel to take its place, if not enough folks join you to make a Resistance Chapel work. Weigh the risks carefully before you act. If you have enough committed allies to make it work, that is one thing, but if all you manage to do is cut yourself off from the Mass and sacraments, the price is pretty high.
In our case, we knew we couldn't continue attending the SSPX chapel any longer before we ever contacted any parishioners about it. We left on our own without a hope of ever having Mass again! But I think if we put the Faith first (not necessarily the sacraments first) then God will arrange everything else. We took a leap of faith and God has truly provided! We are now on the "Mass circuit" and have a growing number of faithful joining us each time. We went from such a hopeless situation to the complete opposite. God has truly exceeded our expectations!
So, if it seems right to hand out reading material, etc. to make the errors known to others, we have to be willing to suffer the consequences of being cut off from the sacraments. Look at the missionaries for example, some faced almost certain martyrdom but it didn't prevent them from spreading God's Word. We can't let the fear of being kicked out prevent us from warning others of the dangers in the SSPX. That is exactly what the superiors of the SSPX want....everyone be quiet or else....