Yes, Falsten; This does seem to me to be a ' feature ' on my own Thunderbird. I posted about the same thing, a while back, then discovered that it was almost completely cured when I stopped wearing three pairs of socks

( It was cold, O.K.? ). I still miss some changes but only when I'm 'revving it out', which is when it seems to require an even more positive toe poke!
R.F.