This past weekend I installed a set of simrek drive showers, I had to make minor adjustments to make them fit right. I drilled 1/8 holes in the pick-up part of the tube and lowered them further in the water, so they would clear below my tie bar. My question is do the prop blades flex or slightly bend when getting on plane or WOT? I have about 1/4 -1/2 inch clearance between the prop and the bottom of the drive shower, I just want to make sure I don't chip a prop or the tube on the shower? I never had showers before and everyone seems to think they are a cheap wise investment.