I always have the service writer walk around my car with me so that any prior problems are noted, anything that isn't and that appears after repairs is their problem. Just going through the process alerts them that you are aware and I'm pretty certain the mechanic is cautioned to be careful.
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'00 TiSports Titanium - DA 9 speed------ '01 KHS Flite 800 - DA/Utegra 9 speed mix
‘02 Ellsworth Flight - Ultegra 10 speed -.'03 Basso Coral - Ultegra 10 speed
'03 Specialized Allez Pro - DA 10 speed .'04 Scattante CFR Limited - DA 9 speed
'05 KHS Flite 2000 - Ultegra 9 speed -... '06 Flyte SRS-3 - DA 9 speed-------
'05 Serotta Fierte - Utegra 10 speed--..-'07 Pedal Force RS - SRAM Force