Propellor cone and prop. loss

[Rapita]

I have read various posts here, also a recent article in PBO about propellor loss.Apparently VP now supply a new cone and locking bolt with a metal tab to lock the bolt in place,about £100.Apparently making it more secure.
Our boat is a B34 ,md 2030 powered with sail drive.

I read a previous ingenious post here about drilling the cone and bolt to fit a roll pin which provides locking security.

I just noticed on another site that Orbitrade sell a lock washer (part no.19367)to fit under the cone with the tabs available to bend up into cut outs in the cone.

Do you think this would work on a saildrive?

Would the tabs cause more chance of picking up debris?

Thanks in advance of any opinions

[Odysseus]

All you need is 243 locktite.

[jeffatoms2]

The five or six blade "crown" nut is a bad design.  Typically we bust off oneoc theprongs each time we remove tbe prop.  That said,PropGlide antifouling is great