Tagron the issue is when you have ice on the Q400 airframe you have to increase your Vref by 15kts (flap 35). In doing so you push up your ground speed. Clearly if your ground speed has increased then you need an increase in rate of descent to maintain the glideslope. If you increase your ROD then you clearly increase your forward speed. The way to control that is obviously to reduce your power but with the power levers near idle anyway you're in the realms of not being able to control your speed (speed unstable regime of a high aspect ratio wing anyone?), or not having alot of authority left behind your right hand.
Then after all that you have to take your landing performance into consideration. The go around performance and gradients at LCY are reasonably standard.