If you don't care about clipping and just go by how the FFB feels to you, that basically means you don't care at all if you get all the available detail in the FFB and if your FFB is set up as it should. Setting up FFB correctly is completely impossible without a tool to measure clipping (which is why it is such a shame that rF2 doesn't even include one and you have to use external tools - every sim should have an FFB meter or at least a clipping indicator). And it doubly applies to rF2 where different cars can be very much off - some are more or less correct with FFB multiplier at 100%, some are clipping horribly (I remember a Group C mod that is probably the worst offender I've ever encountered in this regard, because I assume it tries to "simulate" heavy steering of those cars on our weak wheels by just amplifying/clipping the whole FFB signal like crazy) and some are way too weak. If you set your FFB according to how it feels, you have no point of reference other than your "feel", which might be completely off for what is correct for maximum detail in the FFB. The strength of the FFB is dictated by how powerful your wheel is (which for the T300 means...not that much). If you send higher signal than what the wheel is capable off, it will certainly make the wheel feel heavier, but you'll be losing detail, and over long term also damaging your wheel, because it will be heating up a lot more.
So I really suggest everyone take their time and set up the FFB correctly to get just the right (slight) amount of clipping in some extreme situations. If the wheel feels too light for you, then that doesn't mean the FFB is set up incorrectly, it means you need a wheel capable of producing more torque. Still, I'd say the T300 produces plenty of torque for normal driving, even when set up correctly. It might not produce the torque you'd feel in the real car, but still plenty to give you enough information.
BTW, one thing I can highly recommend to anyone who has trouble "feeling the car" with the T300 (and such wheels) and wants to somewhat emphasize the weaker forces is to experiment with the "Steering torque sensitivity" in the controller.json file. It is rarely mentioned, but it made a lot of difference for me bumping it up from the default 1.0 setting. It alters the "response curve" of the forces kinda like this:
Bear in mind that if you go above 1, then you generally have to lower the FFB multiplier even for cars that are set correctly with default settings and the multiplier at 100% (and if you go below 1, then you obviously might have to raise it), because it doesn't just affect the weak forces, it boosts even the stronger ones somewhat, just less than the weak ones. I'm using values close to 2, which means that even with a car that was set up more or less correctly at 1 and 100%, I have to go to around 65-70% multiplier to compensate for the torque sensitivity adjustment, otherwise I'd be clipping all the time and the FFB would be unbearable. But I was certainly never happier with the rF2 FFB once I discovered this setting.
So certainly adjust things to how you like them, I'd just highly recommend not basing your settings on feel entirely and instead choosing something more reliable and measurable as your starting point, like clipping for example 
