"Smoothness" or "ease of draw" comes directly from the overall stress on a persons' drawing muscles if they are running correct drawlength. If this is the case, then everyone would be the same, and a round wheel bow will feel smoother than a cam twin to everyone, and a twin will feel smoother than a solocam that normally exhibits a more radical force draw curve to maintain as close to the same speeds as twins. Hybrids are a mixture of both and will fall somewhere in between. This will hold true if there is no bias to one or another system.

As Rangeball has mentioned, the wheel bow ramps slower than a cam twin or hybrid or solo. Thus force at the shot is not as severe due to the lesser dwell, and speed is relative. Smoothness is perceived from the degree of ease of graduation to peak weight and dropoff, no matter the person, IF they shoot correct form and are shooting correct drawlength. A person with a 26" drawlength has that drawlength due to their stature, just as a person that shoots a 31" drawlength does. Their scapulae and rhomboids work the same tho because they are human, and are drawing to the same definitive point at correct drawlength. Strength factors are relevant only to overall poundage preferences, tho not to ease of draw or "smoothness".

When someone speaks of a bow with a high FDC being "smooth", you have to thus compare that in terms of whether or not that person has actually shot bows of lesser overall FDC over a given timespan to compare it to, or whether they are actually comparing them to other bows of the same FDC categorization, OR if they are just responding and saying they are smooth due to brand loyalty and they simply want to talk their favorite bow up.

Technically, the more gradual an FDC is, the smoother the system will feel as depicted in each systems' charts.

Bottom line--a "rough" cam system, no matter which kind-- twin, solo, hybrid, is just that, and the FDC definately comes into play. However, if you get used to it, it can be perceived to become "easier". Some may even learn to flat-out like it given enough time, and may even call it "smooth". Good shooting, Pinwheel 12