I attempted to add the Mob Factory block to the blacklist for BBW's acceleration wand, but have been unsuccessful. I'm not sure what their config is looking for, but here are the values I've tried:

S:blacklisted_blocks <
woot:factory
woot:factory/0
tile.Woot:factory
tile.Woot:factory/2
TileEntityMobFactory
>

Still, the acceleration wand causes the mob factory to output something like 10-20 times faster than it normally would

I'll need to look into how the BBW code works as I don't really want to allow this to work. I'm away for the next few days so I'll look into it when i get back.

Since I'm confused after looking at the BBW code. Is this actually from Not Enough Wands or am I just missing something obvious?If so then I cannot see any blacklist support for the Acceleration Wand in that mod, it just calls the update routine of the Tile entity.

Well, now that I look at it, yes. It is Not Enough Wands. I do see that they have the ability to disable fake users from using the wand (e.g. putting the wand in a mechanical user so that the mechanical user can use it on blocks), but nothing about blacklisting specific blocks. I have had plenty of experience, however, with the wand not working on various machines.

The EnderIO Alloy Smelter, for example. The acceleration does not affect how long it takes to create alloys.

I'd bet that items that aren't affected by the acceleration wand are items that compare elapsed time, instead of number of ticks.

I'll look at the Ender IO code to see how that works. Strange that NEW doesn't have a blacklist.

EnderIo has shouldDoWorkThistick. I think this stops the wand from working on misaligned ticks.