Being a moderately lazy winemaker, I tend to rack based on a combination of time and visual inspection. I do not use clearing agents anymore since even my whites tend to get 9 months or more in the carboy. After the first racking off the gross lees I go 3-4 months and even longer (can you say "procrastination"?) unless I see a decent accumulation of fine lees on the bottom. However, I am using the AIO pump and, thus, I am degassing along the way. 3rd and 4th rackings could go 5-6 months. I'm sure many would agree that this is too long.
I agree with cmason in that the key is to eventually get the CO2 out which will in most cases be highly correlated with the clearing process since the CO2 is primarily what maintains the bonds to support the suspended particulate. I would think that temperature would be a key factor since CO2 releases much easier at warmer temps. If the carboy is stored in a very cool location and not degassed I would expect clearing to take quite a while. Each racking would provide some opportunity for CO2 to escape. So if you want the wine to clear relatively quickly then rack every 2 months and keep it somewhere above 70 degrees, but then you need to monitor the SO2 levels to avoid excessive sulphites.
As far as taste goes . . . . if it's an ultra premium kit then it probably won't reach it's prime until 2 years anyhow and by then it will all taste the same. If you bottle at the one year mark and start drinking right away you might detect some difference, but I wouldn't expect a long term difference.