NikArun said:imo, if one wants to be a generalist, he is right. if ido wanted to direct all his efforts into advanced ring strength i'm sure he would have remarkable progress. however his ring strength is trained along with handbalancing, climbing, locomotion, floreio, brachiating etc etc. so him having easy straddle planches and one arm chins (i've seen a picture of him full planching floating around somewhere) is pretty incredible, as ring strength or gymnastic strength is only a small percentage of his overall practice.
For a generalist, can you "afford" to iron cross? What is the point? just to say you did it? it is certainly not a necessity if being a mover is your primary goal, and where is the transfer to other organic disciplines (climbing,various martial arts, parkour etc.). After a certain point, you are going to be subtracting time from other 'more human' skills and be incomplete or imbalanced as a mover.
And also yes you can adapt to almost anything, but that doesnt mean it is good for you. Normal people adapt to sitting 12-14 hours a day and for many many years or decades feel normal until it catches up with them. Immense stress under almost full internal rotation of the shoulder, maybe you'll be fine for a while, but we don't see many ex gymnasts showing health and longevity though their are some exceptions (as opposed to, for example, handbalancers. many examples of those in their 40's and older at almost peak performance and health still).
Again, you may be able to slowly work up to it and balance out the shoulder girdle from almost the full internal rotation, but at the end you will probably have just an iron cross to show for it, when alot of that adaptive energy can be used for enhancing and promoting other basic and human qualities. If being a specialist is your goal, then this doesn't apply! But for a generalist the cost of the iron cross will make the rest of your practice suffer.
In *gymnastics*, rings strength skills contributes a relatively small fraction to your overall score. Yet nearly 100% of high level athletes in this sport will have a good iron cross. They are true generalist: they have to learn hand balancing, acrobatics, and innumerable dynamic motions.
That Ido does not possess high level rings strength is an indication that he either does not care to develop it or does not know how or both.