I have Bestiary 4 on pre-order right now and this preview puts me on the fence about it... I hope this post doesn't come off as advesarial, but I want to lay out my concerns incase I'm misunderstanding certain thing that can be clarified. Also, I don't expect everyone to share my thoughts/concerns, but I wanted to express them, and this seemed the appropriate place. (Disclaimer: I love Pathfinder and think Paizo has done a great job in general.)

Reasons:

• I'm firmly against mythic adventures, as I feel the Pathfinder system is becoming too large for me (as a DM) to manage already. (Example: In 3.5e did most DMs allow every single book created?)

• I have concerns about the balance of the game as it bloats up and the level of effort going into errata and FAQs. (Example: Wierd Words - was 1 round of performance supposed to allow 10 ranged touch attacks against a single monster, each of which deals 1d8 + Charisma modifier damage, and then that single creature has to make 10 fortitude saving throws...? Ultimate Magic has been out for a long time, how has this fallen through the cracks this long? I can't be the only DM that gets sick of arguments/disagreements with that ONE player when he's inevitably the one who finds these poorly worded rules and says "but it's RAW"...)

• After an encounter, my players will inevitably look up the stats of the monsters on the prd. When they see that the DM is using mythic monsters against them, some of them will feel like they should get to have mythic player characters.

• It feels somewhat unfair to use mythic rules against players without giving them access to them as well.

• I was hoping to add a few more monsters to my repertoire for creating fun encounters, but doing so at the risk of igniting problems with my players is probably not worth it.

Questions:

• What percentage of the monster in Bestiary 4 will have mythic tiers?

• Assuming one wanted to, and using the Grendal as an example, how would you remove all of it's mythic tiers and powers? What would the resulting CR be?