Advantages of the Side Mount
The side mount kréddle offers slightly more adjustability because the player can move it along the bottom edge of the instrument whereas the center mount is fixed over the tailpiece. Working in coordination with the kréddle's 360° Lateral Adjustment capabilities, modifying the kréddle's placement along the bottom edge of the instrument allows a player to simultaneously dial in both how close to their neck the kréddle chin plate sits, and account for the length of their bow arm. The length of the player's bow arm determines where the kréddle should be placed along the bottom edge of the instrument. Players with longer bow arms will find neutral bow arm wrist positions by moving the kréddle farther away from the tailpiece; players with shorter arms will find it easier to reach the tip of the bow if they place the kréddle closer to the tailpiece.
The side mount kréddle reaches over the tailpiece the same amount as the center mount kréddle. The kréddle is different from every other chin rest on the market in this regard; the center mount kréddle does not make the chin plate more like a center mount chin rest. The side and center mount kréddles have identical ranges of motion; both reach over the tailpiece the same amount. If you want the chin plate to mimic an ordinary center mounted chin rest you can use either the side or center mounted kréddles with the same result.
The side mount works with a wider range of instruments because it does not have to reach over the tailpiece, which come in many shapes and sizes. The side mount is compatible with nearly any instrument from 1/2 size violins and up.
Potential Disadvantages of the Side Mount
The side mount kréddle clamps onto one side of the instrument, which causes a slight imbalance of the clamping pressure the instrument experiences. This also means that the clamping pressure will move a little farther away from the tail block found inside the instrument. As a result some players feel that their instrument does not sound as full when side mount chin rests are used. From our own experiments, differences in sound are essentially inaudible, if they exist at all. We feel that a player will sound better by having full access to healthy and musical movement patterns with regard to the needs of their own body. After setting up many hundreds of players, we find the side mount kréddle's increased adjustability benefits players who have medium-short and longer bow arms in particular due to the increased ability to account for the length of the bow arm, and that in general it provides players with more options.
Advantages of the Center Mount
The center mount kréddle equalizes the clamping pressure on the instrument. The tail block is the main structural element of the instrument in the area that the kréddle clamps. The tail block is inside the instrument where the button goes into the instrument; right underneath the saddle. Using a center mounted kréddle keeps the clamping pressure as close to the tail block as possible. Some players tell us that their instrument seems to sound a little fuller when they use a center mounted chin rest. The thought here is that by keeping the clamping pressure contained in an area that already has more limited ability to vibrate due to the presence of the tail block, the chin rest is less likely to interfere with the vibrations of the instrument. However, others have told us that their instrument sounds better with side mounted chin rests. We can't say which will work best for you. We do caution that alternating between side and center mounted chin rests often changes the relationship of the player's ear to the instrument, which may account for a portion of the small difference some players feel that they hear. In our own experiments any difference in sound, if any are truly present, are almost inaudible. Due to the subjectivity of sound perception we feel that each player should decide for themselves the best option. What seems undeniable however, is that a healthy player who has increased access to musical movement patterns with regard to the needs of their own body will sound better. Thus we consider the needs of the instrument after satisfying the needs of the player.
Potential Disadvantages of the Center Mount
The center mount cannot be moved along the bottom edge of the instrument. This means that players with medium-short and longer bow arms may find it difficult to relax their right wrist into a neutral and healthy position because their bow arm will end up being too long for the space provided. A neutral bow arm wrist is one of the components of a musical bowing motion that works with the body's natural movement inclinations.
The center mount does not work with particularly wide or tall tailpieces, or instruments with saddles that have taller contours. Before buying a center mount kréddle we recommend taking some measurements as outlined above to help ensure that the center mount kréddle is compatible with your instrument.