Modern Aluminum head question

[JonC]

We all know that back when are cars were new aluminum heads caused problems (taking them off). I have heard chisles were used to bust them off, ouch. With the modern antifreeze and new alloy used on reproduction heads like Offy, Eldabrock, Sharp (what I have) what is the thought of head removal later on, should I stock up on hammers and chisels or have the modern gaskets and coolants solved the problems?