Inswinger as a stock ball?

[wellAlbidarned]

I'm aware that there are differences in technique. What I'm wondering is whether there is any evidence that someone like Jimmy Anderson necessarily "sacrifices quite a bit" through "loss of rhythm" by mixing both types of delivery. Some bowlers might, but it's by no means a given, particularly for those with high skill levels. If you take high class bowlers who moved it both ways - say, Hadlee, Wasim, Marshall or Murali - there is really no evidence of any "loss of rhythm".

Some bowlers can manage but generally the more effort you put into one aspect of your game the better it gets.