I have a recent "need" itch to get the Festool circular saw. After reading many old threads about 55 vs 75 choices, I am inclined to get the 75. I've noticed that 55 is the most preferred one mainly for the relative ease of mobility compared to 75. It is not a major concern for me since I have no use for it other than in the shop to rip 4 by 8s. I've finished a built-in storage system which used 13 sheets of 3/4" 4x8. I found that the most difficult part was "accurate" roughing. Since I plan to construct many more built-ins, I would be able to justify a tool more easily suited for the task of managing large sheets. I am hoping that I have to make one cut which is ready for gluing with Festool. Only other "shortcomings" of 75 over the 55 are the lack of ability to install a side skirt to reduce dust on 75 and the RPM range. I think I can live without either. My question is mainly about the rails. I definitely would want a rail which is is good for ripping full shets. 75" and a secondary 55" rail would give me what I want. How are they connected together? Would they join together and become as good as a single rail with the available extension kit? Would it be worth to get one long (106~118") and have another short one instead of 75+55" combo?
I don't imagine there is ever a sale on these???