Suppose partner bids one of a (five card) major. Normally you need three of the suit to raise.
But expert Marty Bergen has opined that if your suit has four honors, you can bid it as if were one card longer. Mr. Bergen also wrote, "When partner promises a six-card suit, you can support him with a singleton honor."
So if I have KJ (or KT or QJ) of my partner's suit, I'a going to play him for a suit with two more honors: AQxxx, ATxxx, or even QTxxx. In that case, partner and I would have four (possibly five) honors between us. And in the worst case (partner has xxxxx, we'd have two honors). So I'd raise to two with the aforementioned trump holding plus a side king, because I've "borrowed" an extra (small) trump for my bid, based on my interpretation of Bergen.
Is this a reasonable interpretation of Marty Bergen's dictums? Is this a reasonable move to make even if you don't always agree with Marty Bergen?