get 5 ticks. i've been on mitsubishi for abt a year leow. and yes, 2 ticks are to clear stock.
instead of the standard bundle, request for the "best" compressor. for example sys4 compressor change to sys5
for 4 units, if space for compressor is not an issue, do you recommend:
1) sys3 + separate unit for living or
2) sys4 (and changing compressor to sys5)?