Building upgrade costs

Hey what's up everyone!

So I'm making a total building tier overhaul plugin for my server and I ran into a problem.

I need to modify the upgrade costs but on individual tiers, not on all tiers. For instance, I made sheet stronger, so the 150 metal frag cost isn't quite adequate anymore, I want to increase it. I would also like to remove the stones and wood cost of armored stuff, since I always felt it made no sense.

I can change these easily and did it for tests, but the client still has the old values. Tried relogging, still no cigar. I assume this is just one of those things I can't really fight, but I'd like to know if I'm right or not about this one.

Is there a way to change upgrade costs and have them display properly on the client?

I assume the "costMultiplier" settings of the block itself might do this, but I really want to tie the cost difference to the tier, not the block, since then I would be increasing all tiers which is not what I want.

I'm just scared I'm going to get complains when peeps start upgrading to sheet and find out I'm robbing them of 400 frags instead of 150 like the wheel says (even though I made sheet like 4x stronger, eh).