Mitchaa,
the tax rules have changed in recent years, so even the 90 day rule will not apply in your case, as you are clearly maintaining a residence in the UK and the Statutory Residence Test will almost certainly classify you as a UK Resident, due to the number of 'ties', pretty much regardless of how many days you stay away. My belief is that some of the Brits just ignore it and hope for the best, others are legitimately no longer UK residents (e.g. living in Thailand). Talk to a tax consultant for a definitive answer then factor in the pension loss and the loss of quality of life!