Just updated mine as I'd like two monacos instead of one.
Seren Nos x2 Evil pixie M Tri medium Red stripe Duda Medium SA
Seren Nos IronBlue XL IGIT medium Ewen lewis XL Hofmeister bear X2 large MTri medium Flyaway Funkin 1 medium & 1 large Stormie medium Flat Footed XL Manimal L RBMax medium Duda sml LMH SML
Tri shorts £33
Seren Nos IronBlue medium JPGoodboy Ewen Lewis XL Hofmeister Bear X2 large MTri medium SuckitupButtercup (xs) Last out of the water small Stormie medium Manimal medium Duda x2 medium and small SA Dawn shadow large Pug316 XL Gavo medium Capt Jack Sparra XL pudge Ironwolf L LMH XS
My road bike was a compact when I bought it. I didn't know what that meant. A couple of years later when I bought a power meter (two weeks before an IM) I got the cranks swapped over. I didn't realised I'd moved from a compact to a 53/39. I had no idea what this stuff was all about. I also purposely turned off any display of power information for the race as I didn't want to get confused by the numbers. I just let the thing record the data behind the scenes.
As for cassettes, I think I'm running an 11-28 cassette on my TT bike. Yeah there's a bit of a jump between some of the gears (which i've never found an issue) but I can often keep up a good cadence on the climbs and rarely spin out on downhills when I want to push. Seems to work for me.