Two slams after Kokish relay

[bluecalm]

Both practive hands. Both butchered by us

 

[hv=d=n&v=n&n=saqj98532hakdaktc&s=st76h97532d6ck976]133|200|Scoring: IMP[/hv]

 

Bidding (precision)

 

1♣ - 1♦

2♥* - 2♠**

3♠ - 4♣

??

 

2♥ was Kokish relay

3♠ sets ♠ as trumps

4♣ was cuebid

 

We are not sure what is the best way to show some values after 3♠. Is this a good idea to play some kind of control showing bid here (like 3NT = A/2K, cuebids with kings) or just plain cuebids ?

Here opener is likely to face no play slam oppostie something like :

xx xxxx xxx Kxxx which looks to be most likely hand. On the other hand he has grand slam opposite:

kxx xxxx xx Kxxx

Any ideas how to solve it ? On our table it went 4♠ by opener 6♠ by responder on the basis that slam has to have some play with 3card support and stiff ♦.

 

2nd hand:

 

[hv=d=n&v=n&n=saqj98532hakdaktc&s=st76h97532d6ck976]133|200|Scoring: IMP[/hv]

 

1♣ - 1♦

2♥ - 2♠

3♣ - 3♥ (??)

4♣ - 5♣

6♣ passes

 

5♣ denied cuebid anywhere (ok ?).

6♦ is claim at trick 1 basically while 6♣ is below average slam.

 

Here we have completely no idea how to bid it. Any ideas about bidding after this 2♥ relay. It seems that it's very difficult to get any precision there...