For using any of the Timber, Clove, Bowline, choke, Cow; i think it is best to come over the top of the Standing Part holding the Porty with the 1st wrap. Because this would most immediately lock against the projected direction of pull (up) for security.
This most secure, immediate grip also allows a more pointed, rather than flat teepee, giving less bend to the Standing Part for a stronger lacing.
If the spliced or bowlined etc. eye that holds the Porty is short; does not reach past the wrap(s) around Standing Part to Porty, then the full brunt of the forces and impacts can then be placed on the weakness of the splice/ knot as it comes from 2 legs of the eye supporting Porty to a single leg. If the eye is long, and the splice/ knot is beyond the wrap(s) around Standing Part/ eye; and the knot/eye comes around the mount/ host some; then the forces and impacts are borne on the 2 legs of the eye; and the weakness of the splice/ knot does not get the full loading.
Another point would be not to bend the stiffened part of the eye/ knot thru the wrap(s).
If we call the point that Porty pulls from 12 o'clock, the most secure place to make sure tail of Timber etc. is tucked is a convex position around 6 o'clock. For this pulls tightest into the trunk/ host/ mount as 12 o'clock pulls the most away from the trunk/mount. The actual position is 5 or 7 o'clock depending on hitch used i think; to get about the most pull into tree (maxxed at 6); and tail having to pull 'uphill' into greater tension of 6, and not downhill from 6 to fail/ release. As shown in
Baby Holding a Bus - Part2.
The taper of the mount shouldn't be excessively in the direction of pull. If it is and is a removal, i'll cut mini humboldts to bed the line/ sling into; to lock into on loading, and not ride up taper. Lower mounts can make it easier/ faster take purchase with a 5:1 compression jig for pre-tightening the line(by getting more compression distance per pull before resetting grab on load line) for more immediate ballast to the load by line tension or even lifting.
i prefer Cow if enough line; with single overhand mule-ing and rest of tail 'twirled' under the line(s) around tree; for kinda of a Timber finish/ secondary lock. i think of a Timber as a loose eye splice of sorts, that forms a choke around the Standing Part to Porty/ other pull.