Thank you.
I have also been checked with the recommendation there. The problem: There is not much room for new levers, if any, would fit well only the Loveland flaps.
And the second problem: You would have closed the old holes, because new levers need new holes elsewhere.
Therefore, it seems to me quite difficult. Then the Robinson levers probably must stay.
@ Gloria: On my Flatsicle the levers can be heard when in use.
The sound is then very dull and unattractive.