I agree with BEAgle...
The point of the hold is to waste time/fuel and has little other purposes.
The important bit is the hold entry which sets you up for whatever procedure you are going to do VOR/NDB/ILS etc...
As for accuracy for turns? The point of the procedure turn is to simply position you appropriately for interception of the inbound leg, with regard to obstacles in the local area (and a few other techy points not worth mentioning)...so therefore if you fly the outbound tracks accurately who cares about the turn? All this is important is that you capture the centreline...
With regard to turns in the hold - as long as BEAgle says - you capture the inbound track its really not that important....
I think a lot of pilots especially IR rated like to think there is some mystique & magic in all this procedure stuff - there isnt. Its a question of understanding needles and discipline both in terms of flying and cockpit management.
Hope this helps,
FF