1♦ 4+♠ 0-3 ♥ 9-14 HCP
(PART OF LIMITED OPENING IN SPREAD )
2NT an unspecified mini Splinter 4+♠ inviting game (partner may ask with 3♣ bid 3 or 4♠
do you enter the auction?
both side are Vulnerable
risk of penalities Double is low opener Double in first oportunity invite partner to bid on and may have 0 Heart
your partner mqy have some point .
BTW over a 1 spade opening on second chair i would bid 1NT T/O with SPL Spade
pass if partner bid 2 of a minor suit support heart if he bid 2 or 3 Heart