Laced Question, Friends, extend me your spurs Options

[Swing Kid]

If a sam were to get, say, Titanium Bone Lacing and Retractable Spurs, then he would do more base damage with the spurs retracted (albeit only Stun) than with them exposed. Strength [M] Physical for Spurs, and Strength +4 [M] Stun retracted. So, if he has, say, a Strength of 5 then he would do 5M Physical with the Spurs extended and 9M Stun with them retracted. According to SR3, with bone lacing, the character with Bone Lacing can opt to have his attacks do physical damage at half of the power (rounded up), so this example character could opt to do 5M Physical without the spurs. So essentially, he would do the same damage with or without his spurs. Is this correct? Or would the bone lacing bonus (or part of it) extend, so to speak, to the spurs? I think the rules make my above example accurate, so my real question is should there be a house rule for this? Or better yet, have I missed a printed rule somewhere that already covers this?