ORIGINAL TRUMP OPENINGS FROM STRENGTH
It is advisable to lead trumps from strength in comparatively few hands, for the reason that the lead indicates to the dealer the position of the trump strength held against him. If, however, you hold four or five trumps without an honour, and combinations in the plain suits from which you do not wish to lead, the trump may be led through the strong hand. This is especially true of a four-trump hand, which contains three cards of each of the other suits.
Avoid opening the trump from strength when you hold a single honour, or even two honours. You will gain, by waiting for the lead to come to you.