Welcome to the forum! Looking on line at your router and table, you don't have to remove the plate. Looks like a nice setup! Show us some pictures when your finished.
Ah OK...I was told by Trend (UK) that I did not need to do anything to attach the T11 to the WRT Table (with the exception of the Quick Release Kit Accessory!). I went back and asked them about the Phenolic Base Plate...they said leave it on!!! I asked about the Springs and they said leave them on as well. This is the problem a novice like me has when starting out...too much information that differs vastly everytime, which is why I prefer to speak to those who use this stuff every day and generally know what they are talking about!A plunge router has springs in the columns to offset the weight of the router. In a table (upside down) it doubles the weight of the router so adjustments are more difficult. Removing those springs is what Harry was talking about.
You mentioned the brass setup bars...would a Trend Digital Router Height Gauge do instead or should I be considering something like:I have found that adjusting the bit in relationship to the fence is best done with precision thickness setup bars, usually made of brass and easy to find on Amazon. You use these mainly with straight bits where you set them between the cutter of the bit and the fence.