Tanabe DF210 Questions (After Searching Existing Topics)

[ExocetCom]

First off, I've done quite a bit of searching and I'm hoping the folks here can answer two questions about these springs.

1) On a 3dr with stock shocks, have people experienced body or frame clearence issues with things like speed bumps/humps or ramps at parkades and the like? I'll be running the stock RS wheels with the stock RE92 185/60-15 tires.

2) I'm going to get these installed at a local shop who I would like to support; quality work by knowledgable people. Are there any tips or suggestions I can provide them when I drop my car off to have the springs installed? I saw a thread from a few months back titled "the DREADED df210 install" (or something similar), but the OP did not specify what was actually difficult about putting in the springs. Perhaps for those who install at home and don't have access to a lift and an impact wrench it's difficult, but would that apply to professionals in a shop? I don't believe they have worked on Yaris' before, so I would like to be able to bring in as much helpful information as I can.

Thanks in advance for the responses. The YarisWorld forums have been really helpful in informing me about modifying my Yaris.