You could try using MMM, or some other software that has the TBR functionality, but isn't TBR itself. I guess it depends on what is actually causing TBR to hang/crash in this instance.
Once this method is tested and verified on a virgin Wii, in theory it should be possible for a coder to come up with a mod of TBR that downloads IOS41 v2835 from NUS (or uses an SD copy), installs it, and does the downgrading/patching all in one step.
That'll help make things a bit simpler, at least until Ninty pushes 4.3v2 that stubs IOS41.