I had time to experiment with almost everything. Sure, 2 days between strength workouts would be better for the strength workouts, but worse for cycling. My Big Deal of the week is my Sunday group ride and sufferfest. I need 2 days after a strength workout to hit my numbers on the ride. No point in it if I can't hit my numbers. OTOH, doing strength and working almost to failure, the weight used almost doesn't matter.

Perhaps my best results from strength training came from doing 3 sets of 30, circuit style, using the same weight for all 3 sets, the weight calibrated so that I couldn't quite complete the 3rd set. I used these exercises in this order: leg sled, horizontal rows, hyperextension machine, barbell squats, bench press, one legged calf raises (no weights), knee raises in Roman chair, lat pulldowns. I did this for a few years, but changed it because it took too long and the gym had to be sparsely populated. Really good results, though. I got pretty strong on the bike. Highly recommended if you have the time or use a home gym.