Update tophat sizing

wiki/Support-and-FAQs.md

@@ -24,7 +24,7 @@ Calculating available size for tools (number of tools you can fit)
 ### Tophat: Is it required?
 If you only want to print PLA or filaments that dont require an enclosure there is no need just like on the prusa XL. With ABS ASA ect you will need to enclose it.
 
-**How tall should it be?** for a 350 build we found 200mm aditional z height works out well though might need to be higher depending on where you pass through umbilicals. It needs only be enough so that the cables can have a nice arch from back to front so not to collide with others and tangle, while being long enough to reach the farthest corner on the buildplate at layer 1.
+**How tall should it be?** for a 350 build we found 250mm, 300 build 225mm and 250 build 200mm additional z height works out well though might need to be higher depending on where you pass through umbilicals. It needs only be enough so that the cables can have a nice arch from back to front so not to collide with others and tangle, while being long enough to reach the farthest corner on the buildplate at layer 1.
 
 ### Adjust preload
 Preload is created with the 2 countersunk screws in the tool plate.  These 2 screws need to be magnetic and will make contact with the magnets in the shuttle.  This adds 2 more wider points of contact at the base while also pre loading the sleeves/bearings.  To adjust them screw them all the way in, then slowly unscrew them 1/4 turn at a time (keeping each side even) until the tool no longer engages its self right away.  Once you reach a point where this happens, screw them back in 1/4 turn.  Each tool needs to be adjusted separately as printing irregularities can happen and this will allow you to compensate for it.  You may want to test and readjust these from time to time.