This is a cycle-based way to track:

Location	Cycle
Even chance	2 spins
Dozen/Column	3 spins
Double street	6 spins
Corner/Quad	9 spins
Street	12 spins
Split	18 spins
Number	36 spins

Let's see it by example on double-streets @ Wiesbaden 2019-10-14, table #2, in order to be able to comment properly.

You only mark one show of the location in your tracking chart, like this:

Cycle	1-6	7-12	13-18	19-24	25-30	31-36
1		*	*	*		*
2	*	*	*	*	*
3	*		*	*	*	*
4	*	*	*	*		*
5		*	*	*		*
6	*		*	*	*	*
7			*	*	*	*
8			*	*	*
9	*	*	*		*
10	*			*	*	*
11		*			*	*
12	*	*	*	*	*	*
13	*	*				*
14	*		*	*
15			*	*	*	*
16		*	*	*		*
17	*	*	*	*
18		*		*	*	*
19	*	*	*			*
20			*	*	*
21		*	*	*		*
22		*		*		*
23	*	*	*
24	*	*	*	*	*
25	*	*		*		*
26	*	*		*	*
27	*		*		*	*
28	*	*	*	*		*
29		*			*	*
30			*	*		*
31	*				*	*
32			*	*		*
33		*	*	*	*	*

The idea is to visualize the contiguous cycles a certain betting location shows at a given time, in order to bet for its continuation as a currently-consistent spot.

You can use a progression covering up to the second cycle for compounding, but no more. You will encounter more positive "Mushrooms" of concatenated wins if you cover the skip.

The obvious entry-point is always the first spin of the cycle. You stop the attack on a hit, then wait for the first spin of the next cycle.

In case you are using a single bankroll, you must "look back" to spot the location with the longest "succession of success", namely the one that has won the most including the skips your progression allows.

When using dedicated banks per location, it can be advisable to wait for a winning signal before re-activating target location. i.e. entering after actual back-to-back cycles with a show.

You don't limit concatenated wins to enjoy the big-time mushrooms in full.