Mergress XL Vs Mergress Long Handle

I was looking at Lee's Safety Razor website today, specifically the Mergress razors. I have a couple of questions for those of you who might know.

1. The XL pictured on the website has a nice long adjustment knob vs. the short knob on the pictured long-handle Progress. I like it. Is that only available on the XL, or can it be placed on the long handle razor?

2. How much longer is the long-handled Progress?

Thanks for any info you might provide. I guess the last question is how long is the wait for these to be in stock? Do you just have to hit the lottery and catch them on the right day?

I can give you part of the information you are looking for. I have a long-handled Progress and the total length is ~109 mm or ~4.3 inches.

I guess the difference is , an xl razor or a Pool cue you can shave with.