Ace, on a more serious note… if the padding is very thick (and comfy) you may find it changes the handling. In essence, you’ll be sitting higher and slightly more forward. It’s a common rain-racing trick to add towels to the bottom of the seat to raise the center of gravity; your recliner may achieve a similar outcome. Test it and see…
Just curious: if you’re existing seat was already too skinny, how are you going to fit in there with the added padding?