I just changed the front struts and strut mounts on my 98 Mazda 626. The old ones were completely shot. While I noticed an improvement in the ride, it wasn't nearly as much as I expected, and quite frankly the ride is still quite bouncy. While I assume a little of that is probably the rear struts being worn out also, it still just seems really quite excessively bouncy. The tires are properly inflated.
After replacing the two struts, I push down on the corner, I can barely get it to move ( I'm only 70kg / 155 pounds ) and it comes straight back to the starting position without even one bounce. This may be just because I'm only able to depress it an inch or two.