Only a Minor issue, When using a Tinkers Hammer to mine in the Nether, It will not mine the Nether Monster eggs. It just leaves then there, and with a mod installed such as TheOneProbe the player is able to tell what the block is. Is it possible to hide the name of the nether Monster egg block from detection, and or make it get mined at the same time as all other nether rack when using a Tinkers Hammer.

More of a suggestion than an issue actually.

TOP support is planned, Waila will already do this.

Regarding TCon hammers, I'll have to look into the source code to see if that's possible. Does the hammer already do the same when mining near vanilla silverfish blocks?

I think its looking to see if the blocks around it are the same "density", to prevent using the hammer as an exploit to get blocks with a "harder breaking point" (if you get what im saying). So i could imagine it may do the same to vanilla silverfish blocks.