For normal games I go vanilla unless it is a mod that fixes things the company should have done. For porn games I always pick up the walkthrough/cheat mod in the first run and decide mid game if I want to use it.
+1 for Night games. Monster Girl Dreams also fits the theme and has good combat fuck. For other games that fit the bill but without combat fuck I would pick Twinewood and Desert Stalker.
Depends on the setting but I guess not long. I don't think you would even have to seduce in most of them, you could literally do nothing and still get laid as long as you don't literally run away from the girls like the MCs do in some of those settings.
I kinda agree. It definitely kills the pace when putting them right before the scene. In my opinion the best way to do it it's too go through the game fetishes at the game start and let the player decide if they want to leave it on or off. If they already said yes you don't need to keep warning...
Sometimes. Unless there is a forced scene where the LI steps on you I think a few frames that focus on the character's feet is very inoffensive. I mostly don't even notice it unless the dev REALLY goes for it.