I have a question ( obviously )

I've had my RTB for about over a year now. I got him when he was just a little baby and he is now close to 3 and a half, 4 ft.

When he was young i held him alot, almost every other day, very gentle snake, other than one occasion where he struck and nicked me ( he was shedding, wasn't aware of it when i stuck my hand in ) he has been very well tempermented ( i'm hoping that's a word? )

However as the months went by, and he grew, i wasn't always able to handle him as much as i felt needed, or wanted to, other than maybe once a month. I take great care of him, he's healthy, eats great and i've never had a problem the few times i had handled him. However i feel that as time goes by, it may not be as simple as it use to be.

I was wondering, what is the best way to approach my buddy into being able to handle him to the extent where i can feel comfortable taking him out of the tank without worrying that he may strike.

Now i realize you must always been on guard, and he's only struck at me one time.

I apologize if this isn't making sense or i'm not getting to the point, i'm kind of just going with the flow.

What would you recommend i do in order to start holding him and getting him use to me once again without having to worry.

I feel like this is an amature question, but after BPs and now my first RTB i still feel like i need to start from scratch on building a relationship with him.

I see so many people who are holding their snakes, around their neck, near their face, etc...and they don't seem to be worried. That's the relationship i'm trying to build with my boy.

Do red tails get more aggresive as time goes by without being held alot, or since they seem to have a pretty mellow tempermant, am i able to just continue with what i've been doing?( i've been using gloves to hold him the last couple months, which was rarely )

Also, other than while in shed, and a couple of days after eating, are their any warning signs that they give off when they just don't want to be messed with, other than the hissing and maybe kind of just strike, but not grab on...more of a just " don't mess with me kind of strike "

I realize this was a long rant, and probably not very understandable, but i'm hoping i got my point across and it makes sense?

Any help would be great, as i almost feel like i'm losing touch with him.

Thank you!