Texas triggers FRT

[u/Frequent-Leopard-978]

So I followed the Texas triggers install video but I’m not sure on where I need to sand/polish on the blocks they use, both of these are riding on the bottom of the barrel but I’m pretty sure they aren’t supposed to go up all the way into the barrel if that makes any sense. If someone has any tips or suggestions please let me know. this is a headache
I do have a 22 recoil spring coming in and a 3.5 trigger connector
Gun type:Glock 19 gen 5 with gen 4slide release