Bouncer/Rocker question

[amydiara]

I have a 4 month old baby who is huge (23 lbs, wears 18-24 month clothes). He loves his bouncy seat, FP Kick and Play, which was a hand me down from my first son. However, the bouncer has seen better days and I have to pound on it to get the vibration to work and I'm stick of carrying it up and down the stairs (he uses it sometimes at night to sleep, when I shower and then as his daytime hang out chair downstairs). So I was thinking of getting a second bouncer. I noted that most bouncer had a weight limit of 25lbs though Im not really sure why. But I was wondering if I should go with an infant to toddler rocker like the FP one:

http://www.amazon.com/gp/product/B0002ZOI9W/ref=s9_asin_image_1/002-1002483-7236025?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-1&pf_rd_r=1JD2Y3ZDX1PY121XYF77&pf_rd_t=101&pf_rd_p=278240701&pf_rd_i=507846

but Im not sure the baby will like rocking vs. bouncing, or if it would still be useable for sleeping- anyone have any experience here?

I also worry that I have heard a lot of the other bouncers arent good for older babies (too small) and since mine baby is so big, he may not fit.


Amy