We keep telling players that points do not work so well in trumps and the hand from last week shows just why.
As you can see 12 tricks are an easy make with 17 points opposite 7. We could not bid that you say but try using the Losing Trick Count.
West has 3 losers in spades, 3 in hearts and 2 in clubs. 8 losers.
The gadget assumes that an opening bid has 7 losers or fewer and so West does the sum 18 - (8 + 7) = 3 and bids 3 ♠. Remember that 18 is the magic number we use with this gadget.
Now let us go back to East who also counts their losers. 1 spade, and 3 diamonds = 5 losers but you should adjust by subtracting a loser with more than your share of Aces. Partner has shown 8 losers and you have 4 = 12. Subtract for 18 is 6. However, the method does lose accuracy above game some we should check.
We start with a cue bid of 4 ♣ and get 4♦ from partner. Now, after that news you can bid 4 NT or, just bid 6 ♠.
If you took 680 gets 7 out of 16 match points and 6 ♠ gets 15. Bid up.

Before we leave this hand we should consider how it should go if partner only raises to the two level (which is what happened at our table. A help suit trial bid bid of 3♦  works because is says, "Partner if you are maximum bid game, if you are not maximum but can help with diamonds bid game, else sign of in 3.
After this West bids 4 ♠ and maybe you can still get to the slam but it is more difficult.

As you might gather Dave A has taken over this feature from Frank (I loved reading his input) and if you have queries see me at the club or email Bridgebugmorpeth@ gmail .com