SPK6618H antenna L5 Phase center

L1 (65mm) and L2 (64mm) phase center locations / elevations are shown (clip image attached). Does the L5 phase center align with either L1/L2? Does it have a unique location? If I turn on L5 for a Mosaic X5 does that change my accuracy (elevation) based on using all 3 signals? When using L1/L2/L5 what takes precedence and can I determine which signal is part of each solution?