Well, as most of you know, unifying the HRE in HttT is insanely easy; 'tis so easy in fact that it is itself a game-killer; well, after thinking for a while I came up with some possible solutions for this annoyance... 
A) If at all possible, scale the costs of reforms; the first ones are OK regarding Imperial Authority cost, but later ones should be more expensive.
B) Maybe the Imperial Authority awarded when doing "HRE Friendly actions" (Imperial Liberation, answering call to arms, etc.) should be diminished... perhaps even halved, making thus the reforms more uncommon and slowing the process as a whole..
C) This has already been proposed before, but it won't hurt mentioning it again: what about forcing the Emperor to wait, say, 20 years between reform and reform?
D) Regarding the "Not at War" rule for the last decision introduced in 4.1 Beta: perhaps by making it so that EVERY Imperial decision needs to be enacted at peace it would be harder altogether to carry out unification.
E) How about some sort of grand coalition that takes place when the Emperor revokes the privilegia? Like France and Poland marching against the Emperor in an attempt to halt his ambitious gambit?
F) Finally, I have no qualms with having cores all over central Europe upon unification, but I find it unrealistic that no stability or decentralization hit takes place; Such monstruous enterprise would no doubt stir many an independentist thought (mostly in the form of those nobles who suddendly lost their independence to their "Primus Inter Pares")... perhaps placing some dastardly and deadly events regarding massive stability hits or perhaps organized revolts against the newly crowned Emperor would make things the more challenging... and would make a HRE-Wannabe think twice before clicking the "Renovatio Imperii" button...
Well... what say you?? Sorry if it's somewhat difficult to read or if my thoughts aren't very clear... it's 08 am here and I haven't yet slept...
A) If at all possible, scale the costs of reforms; the first ones are OK regarding Imperial Authority cost, but later ones should be more expensive.
B) Maybe the Imperial Authority awarded when doing "HRE Friendly actions" (Imperial Liberation, answering call to arms, etc.) should be diminished... perhaps even halved, making thus the reforms more uncommon and slowing the process as a whole..
C) This has already been proposed before, but it won't hurt mentioning it again: what about forcing the Emperor to wait, say, 20 years between reform and reform?
D) Regarding the "Not at War" rule for the last decision introduced in 4.1 Beta: perhaps by making it so that EVERY Imperial decision needs to be enacted at peace it would be harder altogether to carry out unification.
E) How about some sort of grand coalition that takes place when the Emperor revokes the privilegia? Like France and Poland marching against the Emperor in an attempt to halt his ambitious gambit?
F) Finally, I have no qualms with having cores all over central Europe upon unification, but I find it unrealistic that no stability or decentralization hit takes place; Such monstruous enterprise would no doubt stir many an independentist thought (mostly in the form of those nobles who suddendly lost their independence to their "Primus Inter Pares")... perhaps placing some dastardly and deadly events regarding massive stability hits or perhaps organized revolts against the newly crowned Emperor would make things the more challenging... and would make a HRE-Wannabe think twice before clicking the "Renovatio Imperii" button...
Well... what say you?? Sorry if it's somewhat difficult to read or if my thoughts aren't very clear... it's 08 am here and I haven't yet slept...