I will look for some other videos to compare.
I have a simple timing light, nothing exotic.
I think I have pinpointed the miss to the number 2 cylinder, probably should have before now, but pulled the plug wires one by one when number 2 is pulled, it is the only one that doesn’t change the running condition.
The plug was black and damp so I think that may be where the fuel is not is not being burned. It is getting good spark at the wire, or at least felt like it does and the plug is sparking.
Likely have ruled out the Sniper and the ignition , all seems to be functioning properly.
Apologies for the false accusations on the Sniper and thanks for all the help, certainly learned plenty and have some new shiney parts and good trail spares!
I guess I am to the point of taking a look under the valve cover?