I have an old Erard, from 1940 something I think.
I love it, is a baby grand, however the action always has been different than other pianos, it has no weight leads.
But recently, it was also sprayed with insecticide as I saw a bug and suddently it was perfect, perfect touch if felt easy and fast, I guess the insecticide lubricated a little bit the piano for a coule days, as effect was gone after it.
So I called the technician and he lubricated and regulated almost all the action but it still doesnt feel right so he said he could add lead weights and will end up perfect but even when I waited 30 years to finally be able to buy a Piano, I'm a noobie about it and dunno if its a good idea.
What are the pros and cons of it, do you recommend go for it and add the weights?, right now I even have pain sometimes as the action is a bit hard, but is working correctly as I was with the technician and it looks good every piece of it.
Thanks for the help, my piano is very valuable to me and want to do the best.