Bob, Rick, anyone else out there that regularly switches between different bikes/seat angles:
Do you find it hard to "get in the zone" after changing from Vendetta to Silivio (or other), and then back again?
My Sofrider has two custom, quick-change seats.
I built the first one with a 33 degree recline.
This is the seat I use most.
Years later, I built the second one with an 18 degree recline.
This is the seat I use when I want to pretend I'm a racer.
Aerodynamic efficiency rules... and this seat rules.
Why?
The fake reason for building my own seats is that my sweat had corroded
the bolts holding the bottle cages to the stock seat pan and was pitting the
aluminum seat pan itself.
I'm corrosive.
The real reason for building my own seats is that I could.
I'd built all my own kayaks, custom-fitted to my body and felt, correctly
as it turned out, that building custom-fitted seats would be worth the effort.
Now, everyone is different and I know I'm different, so take this for what it's worth.
The 33 degree seat is very ergonomically similar to the stock Cruzbike seat,
except for the subtle swells and dells that mold it to my unique back.
When I hammer in this seat, my lower-body power is either generated
between the hips jammed in the pocket of the seat and the pedals or
between my shoulders bridged on the back of the seat and the pedals.
The 18 degree seat sits two inches closer to the head tube and two inches lower
on the frame that supports the bottom seat pan than does the 33 degree seat.
This way, I do not have to adjust the TFT when I change seats.
The 18 degree seat has a subtly different shape, because I lie flatter and my spine
has a different shape.
The 18 degree seat has a shorter seat pan -where the buttocks are supported-
because that worked best for the low seat when stopped ... and the leg(s)
were on the ground.
When I hammer in this low-drag seat, I'm already mostly bridged and so power
is generated between both my shoulders; hips and the pedals... with a little boost
from the neck muscles via the head rest.
The 18-degree seat is faster uphill, faster on the flat and, of course, much faster
downhill.
For me, it transmits what power I'm still capable of more efficiently.
The 33-degree seat gets the most use because it's easier to see stuff when your head
is not on a head rest; it's also easier for me to access my water.
Is it easier to get from 'zone' into another 'zone.'?
Not for me.
But, like I said, I'm different.