I can only assume the rule is there for Cas anyway considering their pitch is near enough a square...

Though I don't remember any team getting a 40/20 against us. (maybe the loss to quins...) Perhaps coaches are trying not to use it due to the possibility of the ball going dead on the full.

tbh i reckon only time teams use this ploy is when they are in trouble and kick early in tackle count , before wigners drop back.

this isnt a position weve found ourselves in much this season.......hence we take the option of kicking deep and getting the defence up to get territorial advantage deep in oppositions half.

as for tap from where balls kicked if it goes dead?
non starter........a rugby ball can bounce in any direction and a good kick could end up being penalised through a wicked bounce.
what would be an idea would be a tap where balls kicked from if it goes out on the full , as per direct into touch?..........or is that already the rule??

If it's kicked out on the full on the 6th tackle it is a "handover", ie a tap where the ball was kicked. If it's earlier in the tackle count, it is a scrum from where the ball was kicked - or 20 metres in.

Sorry, the above "rule" applies to ball going directly into touch.

If it goes straight dead without bouncing, I think it is a 20 metre tap - sometimes see this when "bombs" go too far.

Saints did at our place - Leon Pryce kicked it and they scored a try from the first set after the scrum, IIRC; certainly got them into a very favourable position, and at a key point in the match.

It's something I'd have liked to see us doing more, though I take the point that we probably didn't need to very often this season.