I'd start with the default values and see what that gets you. With the short focal length on the FSQ it should work well enough to get you going. You can always fine tune things if you see problems in the subs - my guess is they'll look great. The guiding algorithms to use in PHD are RA - Hysteresis, Dec - Lowpass2
If you're imaging with an FSQ-106 at 530mm (or shorter using a reducer) my suggestion is to use APCC Pro-APPM create a pointing model and forget about guiding. I have the same telescope on a 2017 Mach1 that I set up nearly every time I image. I set up during the day placing the tripod legs in the spots marked on the paver stones so it's very close to aligned - polar align as soon as it gets dark enough then run a pointing model - it's much simpler to do than write about it. Everything will be ready in plenty of time to get you imaging at astronomical dark. I take 2 minute unguided exposures with my FSQ-Nikon and night after night the stars are like pinpoints.
Based on what I know about the performance of the 1100 it should easily outperform my Mach1. Maybe if you're taking sub exposures of 20-30 minutes you may need to guide. But even then it would be advantageous to create a pointing model before imaging. It will take a huge amount of work off the guider and picking the "optimal" setting for PHD won't be all that important.
Edited by AgilityGuy, 24 September 2020 - 09:23 PM.