I've had this issue with my old accord and my 95Gs now. Not really a problem but i'm just curious. Going 60 mph or 50 or 40, when you let off the gas, does you car roll with ease or does it slow down at a rapid rate? I can understand with my accord cuz it was packin an amazing 130hp to the wheels with a 2.2 liter and the rpms were always up there and that acted as an engine brake. I don't understand why it would do it with the GS, 220hp 3.0 liter???? The RPMs are usually never above 2500 at 60mph and when i let off the gas, it will go down to 1500 rpms and lower so the car should roll with ease right?? No engine braking here...so why does it do this?? Also, it never accelerates on hill, even steep ones, if anything it will slow down
Brakes are not an a problem because i had calipers, pads and shoes replaced 2 months ago.

Comparing my GS to a chevy venture , buick skylark, volvo s70, mine slowed down the fastest. The Venture rolled really really nice.

 

That is wierd, I assume you do have the O/D activated and you are not in Power mode on you ECT. Even though power mode should'nt affect it, the car should slip into a kind of neutral according to the manual when you let of the throttle with the O/D on.