Well , a 46 FX does not put up with the punishment a 40LA does.-

I never lost a cooling fin on my LA40 !!

I did on FX46s !!

I never chaged a carburator on the LA40 but did on the FX46 !!

When you are at that level the bushed engine make sence, it is robust !!
.... and you always can take it to your other hobby.... fishing !!!