Fear no rule. I know you will homebrew this game: I trust it will remain recognizable but different from as I conceived it. Such is as it should be.Just like OD&D and many of it's offspring, it is expected that the DCC RPG will be played in a manner that suits each individual group. Houseruling is to be expected.
I'm one mean houseruling mother f'er! I do it to every game I run. I can't help myself.
Last spring / summer's ACKS campaign? I houseruled the sucker. The ongoing AD&D / OSRIC game delving into Rappan Athuk? I houseruled the shit out of that.
I don't know how an experienced DM / Ref / Judge worth his salt doesn't tweak a given ruleset to suit his players. Mind you, houserules aren't there to make make the game easier for the players, they are there to make it a better play experience for all involved. Some may help them, some may hinder them but the play is the key.
I do, however, let my players know upfront the houserules that are in effect. No one likes the surprise houserule that screws over their plans. It's not fair to the players and itsnot fair to the campaign.
When you run a campaign, do you RAW (run as written) or do you houserule?