scilicolne... what's that.. a German sausage ?
personally, the more trades you offer ( whithin reason ) the better service you offer to a potential client, which means on quote stage, you may be dearer, but they are using one tradesman..and you increase your chances of getting a new client, you are selling yourself better to offer the add ons,
in years gone past.. yes it was the tilers job.
you can get Silicon kits with the fluid and the shaper tool, with these items, its easy.. practice make perfect... I used to use my index finger as
standard........... but there's better things to do with that, so I bought a schlomberg kit for £30.00, think about it ;-) if you want long term business... think long term