apollo1201, on 2020-August-15, 09:10, said:
Easy 4H. Almost too good for that.
Even easier after the overcall. I witnessed a pair play in a 1-1 fit at 4H after a 1S opening, one thought was is a splinter, the other thought it was natural...
Not so easy 4
♥ if partner thinks it is a splinter bid and goes crazy in spades. And even if partner recognizes 4
♥ as natural, how many slams are you going to miss because partner will almost always have to pass.
Is 4
♥ a splinter bid? Certainly in an uncontested auction,
players who play splinters would interpret 4
♥ as a splinter bid.
How does a contested auction change the meaning? Some players also play fit jumps, so 4
♥ would show moderate hearts and a spade fit with a hand worth playing in game. My not very strong opinion is that 4
♥ should be a splinter, 3
♥ would be preemptive (if not playing fit jumps), and 2
♥ is natural and forcing.