[maartenxq]

Caitlynne, on 2017-September-29, 14:15, said:

You have a dead minimum opening hand with a wonderful diamond fit.

In the context of the bidding you have a whale of a hand. Partners bids 2/1 GF. Red strong opponent offers black suits. Where are partners hcp's? Indeed in the reds. Meanwhile I have first controls in both black suits.
3 ♦ can of course be the best bid, support good hand unlimited, but you cannot stop below 6 ♦ in my opinion.
Maarten Baltussen

[MinorKid]

Just wonder without that overcall would you bid 2♥ or 3♦ or somthing else if playing
1. 10+ 2/1
2. Game forcing 2/1 ?

[cherdano]

What does everyone have against 4♣? Yes, 3♦ preserves room - but you'll never be able to come even close to describing your hand with the remaining room, even if opponents aren't about to take that away in any case. Yes, our combined playing strength depends a lot on partner's heart holding, but partner already knows that.
Are you requiring 15+ hcp for a splinter when you are already in a GF?

[Phil]

4♣ looks utterly obvious. Maybe to help partner to evaluate but also to get us the right lead against 6♠.