Hi Ian,
I will get back to you later today in a PM.
Hi Rich,
Wish I was a lathe user, sometimes.

Hi Art,
Thanks for the response. As you say, I am sure it was non-intentional but the The E1P1 / E1P0 seems to be a buffer type of problem as it will work for a small number of instances (6 or so) then it will freeze for a while then work then freeze and so on. When it does work it is just such an excellent command for fast switching it would wonderful to get it back again.
The existing Impact/Laser plugin which uses the digital trigger output is not affected by this issue.
Hi Hood,
I must admit to having not tried the very latest SS version software. Thank you for the information.
The Mach derived M10 / M11 suffers similar problems to the E1P1 / E1P0 and will freeze during a long repetitive sequence but the new SS derived commands may behave very differently.
Unfortunately, nothing is ever simple as my SS installation is currently on a milling machine and is not plug for plug compatible with the laser but when I can I will transfer it and see.
Hi Gerry,
You are quite right and it is a bit ironic really because the response has really exceeded my expectations.
Thanks to you all for your assistance,
Tweakie.