Yokomo BD Help

[JJC]

Ok, when running a spool the CVD drive pin in the standard (Granger Edition) front driveshafts seems to break very easily - the slightest glance of a barrier or coming together and it seems to break everytime.

Now I have dried the 'drill bit' fix (two different brands of drill bit too), but these seem even weaker than the standard pins.

I have got some TiR CVD's to go in, but these also have a very skinny drive pin so don't reckon much on there chances (also quality is very poor with one shaft ok and one with 1mm of play between axle and dogbone straight out of the packet!).

I'm currently running the Yokomo Hardened Steel UJ's and these hold up pretty well, but the drive pins are only a push fit and seem to vibrate loose when running a spool.

I love my BD and this problem does not exist when using a one-way or diff. However it is oh sooooo much better with a spool and I'm desperate to find a fix.

I have thought about drilling out the axle and trunion, enlarging the slot in the dogbone and fitting larger pins, has anyone tried this?
Or maybe trying pins made from piano wire?

Can anyone recommend any other shafts (maybe other manfacturers that will fit with shimming or different bearings)? Any help will be much appreciated.

Cheers

JJC