You have a "Medium" output Glider at 0.9mV and 24 ohm coils. Folks running a Glider below 200 ohms typically have the "Low" output version, at 0.3 - 0.4mV depending on series (e.g. L2 versus current SL) and 12 ohm coils. Therefore there are different loading requirements between "Low" and "Medium" (and "High") versions. (Note: the L / M / H versions may have been introduced in later series succeeding the original Glider -- the Glider goes way back!)
I have a "Medium" Wood SM, which is basically the same as a medium Glider in a wood body, and in my system it seems to like ~ 470 ohms best. But it’s still excellent at 220 or 1K. Below 200 ohms, you will start sacrificing some of its performance (due to loading losses), though it’s subtle at first. BUT if you like 1K in your system with your ears, then it would be wise to choose a phono stage which can achieve that (or thereabouts).
Some MC phono stages will lock the loading at 100 ohms. Yeah, I find that extremely annoying and limiting. It will be fine for a Glider L but a bit suboptimal for a Glider M, and very bad for a Glider H! The Benz PP-1 phono stage (sadly discontinued) is locked on the other side, at 22,000 ohms, but works great with all Benz (except the Ebony TR) and in that case it’s easy to bring the loading down to whatever you like with a DB Systems loading kit (which I’ve done). However if a phono stage only offer 100 ohms, unfortunately you cannot bring it up from that without internally modifying the unit or getting a different phono stage.