You have a full range available on your instrument.
Range is one of the elememts you can use to add variety to your solo.
The same passage played in a low register sounds different when played high.
Need to determine waht range you wnt to use to start your solo — low, middle or high
Then vary the register as appropriate over the course of teh solo.
don’t stay in a single register throughout.
Move from high to low or low to high
or to middle
to keep your solo interesting.
Use full range of instrment — work to extend the range of yoru solo
Play similar passages in different ranges.
Don’t limit to a comfortable regsiter.
Push the range to full effect.