Recap a 72?

I've recapped my Hi-Cap and 250 and been blown away be the improvements. My 72 is of the same vintage (1989) and although I think it sounds great, I'm curious as to whether the 72 will benefit as much as the Hi-Cap and 250 have. Can anyone tell me how big a change this is, as much as getting a black Snaic, as much as a Hi-Cap recap?

Noel.