You don’t lock your elbow simply because muscles work faster if started under load.
Levmans terms-
have a garden hose on a tap,
a bucket under the hose
turn the tap off and wait for 60 seconds
turn it on.
New bucket
turn tap on so a little water is coming through the hose.
put hose over bucket and turn on simultaniously
compare the water in both buckets.
Something to do with cns, train it properly